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LSD, Psilocybin, and 2C-B Each Leave a Distinct Fingerprint on the Brain, New Study Finds

9 September 2026 at 12:45

LSD, psilocybin, and 2C-B are often classified together as psychedelics—but new brain imaging research in rats shows that each compound produces its own distinct pattern of brain activity.

These differences appeared during both the drugs‘ active effects and in brain scans taken one week later, according to a study published in Nature Communications.

Interest in psychedelic medicine has increased rapidly, with several compounds now being tested in clinical trials for conditions such as depression, PTSD, and addiction. Most previous studies have focused on individual drugs, leaving it unclear how the effects of different psychedelics actually overlap. To address this, researchers at the University of Southern Denmark designed a study to directly compare the effects of different psychedelics side by side.

The recent researchers relied on PET scans to monitor brain metabolism and connectivity in rats after giving them LSD, psilocybin, or a synthetic psychedelic known as 2C-B. They recorded changes during the immediate effects of each drug and again one week later, allowing a direct comparison of the resulting brain activity patterns.

Different Drugs, Different Fingerprints

Each drug produced its own distinct pattern of brain activity, and only a handful of changes showed up across all three.

“Psychedelic drugs are often discussed as if they work in the same way. But when we look at the brain, the differences are clear,” said Mikael Palner, associate professor at the University of Southern Denmark’s Department of Clinical Research and senior author of the study. “Each drug appears to affect its own networks, and that is new knowledge.”

2C-B and LSD drove the most changes while the drugs were active, but the more striking result showed up after the drugs had worn off. At the one-week mark, 2C-B primarily affected regions of the brain associated with reward, while LSD showed effects in areas involved in habits and motivation. Meanwhile, psilocybin primarily affected regions associated with emotion.

“What is interesting is that the differences do not only appear while the drugs are active. We can also see different traces in the brain afterwards,” said Frederik Gudmundsen, the study’s first author, who completed his PhD at the University of Southern Denmark and now works as a postdoc at Aarhus University’s Translational Neuropsychiatry Unit.

Not Better, Just Different: and Still a Long Way From the Clinic

None of this means one drug is better than another, but it does suggest psychedelics may not be one interchangeable category when it comes to developing them for medical practice.

“If the drugs affect the brain differently, it is also possible that they may eventually prove better suited to different disorders,” Palner said. “We do not know that yet, but our study provides a biological starting point for investigating it.”

Despite these intriguing findings, the research does not determine if these distinct patterns of brain activity from different psychedelic substances apply to human patients. The researchers acknowledge this limitation, noting that the results are based on animal models and that further studies in humans are necessary to determine if the same differences apply.

The authors also disclosed that Mikael Palner holds shares in the psychedelic drug companies Compass Pathways and AtaiBeckley, but neither company was involved in the research.

The study still offers a detailed biological picture of how different psychedelic substances alter brain metabolism and network activity and could help researchers investigate whether specific compounds might eventually prove better suited to particular disorders.

For now, researchers have yet to determine whether LSD, psilocybin, and 2C-B will ultimately have distinct roles in medicine or whether the differences between them are less important in humans.

Austin Burgess is a writer and researcher with a background in sales, marketing, and data analytics. He holds an MBA, a Bachelor of Science in Business Administration, and a data analytics certification. His work focuses on breaking scientific developments, with an emphasis on emerging biology, cognitive neuroscience, and archaeological discoveries.

“We Couldn’t Believe What We Were Seeing”: Scientists Have Discovered a Bizarre New Microbe with an “Alien” Reproductive Strategy

8 September 2026 at 13:33

A recent study published in Protist reports that a marine microorganism reproduces in a previously unknown way: by creating new cells inside its body, then rupturing to release them.

The bizarre process is reminiscent of the reproductive horror depicted in the movie Alien, albeit on a microscopic scale.

This microbe is part of the Labyrinthulomycetes, a group of marine microorganisms that play a key role in recycling nutrients by breaking down dead plants and animals in salty environments. Beyond their ecological importance, some species in this group are valued for producing omega-3 fatty acids like DHA, which is also found in oily fish, and carotenoids, pigments used in food coloring.

This newly discovered species also contains roughly 50% protein, adding to its potential commercial value for applications such as food supplements, infant formula, and aquaculture.

An “Alien” Reproductive Strategy

“Instead of dividing into two, as we would expect, the mature cells develop a large internal chamber in which entirely new daughter cells grow,” said Professor Peter Morris, a plant biologist at Heriot-Watt University.

“Some of those daughters already have another developing generation inside them, before they are released when the mother cell breaks open,” Morris added. “So, these microbes can be pregnant grandmothers, in the same way as some species of greenfly are born already pregnant.”

The researchers named the new species Caledochytrium aldermanii, drawing from Caledonia, the Latin name for Scotland, where it was discovered in three locations. The species name also recognizes Dr. David Alderman, whose early work culturing the microbe made the study possible.

This discovery resulted from a long-term collaboration among Heriot-Watt University, its spinout company Strameno, CEFAS Weymouth, and the Institute of Aquaculture at Stirling University.

Caught by Watching, Not Just Sequencing

Dr. Jane Polglase, who has spent nearly five decades studying Labyrinthulomycetes and co-founded Strameno with Alderman and Dr. Lydia Brown, helped document the microbe’s unusual reproduction. The team relied on traditional observation and description, an approach less common in today’s genomics-focused research.

“While lots of scientists now focus on the DNA of any creature, we’ve taken an old-fashioned approach, also observing the microbe’s behavior and describing its morphology fully,” Polglase said. “If we had not done that, we never would have captured this peculiar reproductive process on camera.” When the team finally caught it under an electron microscope, she said, “We couldn’t believe what we were seeing.”

Resourceful Marine Recyclers

Researchers found Caledochytrium in a variety of habitats, including octopus dens, on rainbow trout, and in a salt marsh along Scotland’s east coast. The researchers believe it contributes to nutrient recycling by breaking down animal and plant material.

An important part of this recycling process is the ectoplasmic net, a network of membranes the microbe creates to move around, feed, and stay buoyant. When it moves to a new surface, the microbe leaves the net behind, where marine larvae can feed on the leftover material, helping pass protein and lipids up the food chain.

What Comes Next

“Understanding how this species reproduces is key to understanding how it could be used in commercial settings, like aquaculture,” Morris said.

With this phase of research complete, the Heriot-Watt and Strameno team hopes others will continue the work. The discovery highlights how much remains to be learned about the diversity and behavior of life in the oceans.

Austin Burgess is a writer and researcher with a background in sales, marketing, and data analytics. He holds an MBA, a Bachelor of Science in Business Administration, and a data analytics certification. His work focuses on breaking scientific developments, with an emphasis on emerging biology, cognitive neuroscience, and archaeological discoveries.

Wild Chimpanzees Keep Hurling Rocks at the Same Trees—Now Scientists Are Trying to Figure Out Why

4 September 2026 at 14:16

In Boé National Park, researchers have repeatedly encountered a small number of trees marked by gouged bark and piles of stones at their bases. These signs suggest that wild chimpanzees have returned to the same trees for years to throw rocks. According to a recent field account by University of Victoria researchers Robyn Nakano and Ammie Kalan, some of these sites have remained in use for over a decade.

This behavior, called accumulative stone throwing, has been observed in only four chimpanzee populations in West Africa. While rocks and trees are widespread in chimpanzee habitats, piling stones at specific trees is rare. Nakano, Kalan, and other researchers suggest this may be a cultural practice within certain groups rather than arising from environmental factors alone.

What the Behavior Looks Like

Video recordings collected through the Pan African Programme and analyzed in a 2016 Scientific Reports study led by Hjalmar Kühl show that mostly adult male chimpanzees throw rocks at particular trees and repeatedly return to the same trunks. During these events, the chimpanzees pant-hoot, a loud call used for long-distance communication, and sometimes perform buttress drumming by repeatedly striking the tree’s buttressed base with their hands and feet.

Pant-hooting and buttress drumming are typical features of displays put on by male chimpanzees. The fact that these behaviors occur alongside stone throwing suggests that accumulative stone throwing may have developed as a variation of these existing social displays.

A Ritualized Behavior, Not a Coincidence

Researchers suspect this behavior may be cultural rather than simply a response to environmental conditions because it occurs only in certain areas, even though appropriate rocks and trees are common throughout chimpanzees’ habitats. Within one population, only particular trees are used as throwing sites. Earlier studies have suggested that the behavior might function as a form of communication or could indicate places of symbolic significance within a community’s territory.

The behavior could also offer archaeologists a rare example of how repeated stone use and accumulation can create material traces that persist after the animals that made them have moved on.

Some primates use stones as tools, including populations that use rocks to open nuts for food. Accumulative stone throwing differs because the behavior occurs in a social context rather than during extractive foraging. The purpose of this behavior for the chimpanzees remains unclear.

Into the Boé Wilderness

Nakano and Kalan conducted their fieldwork from Béli, a village where the Dutch nonprofit Chimbo operates a solar-powered research compound with local partners. The team traveled 22 kilometers by bicycle and on foot into the savanna-woodland to establish a camp, working with field assistants Djei Baldé, Balu Séra, and master’s student Taylor Tippett from the Great Ape Behaviour Lab.

The Boé chimpanzees are not used to humans and tend to avoid them, making direct observation impossible. The team instead set up two video cameras at each known stone-throwing site and placed audio recorders nearby to monitor the area.

Each day began at 6:30 a.m. with visits to two to five sites to replace SD cards and batteries, check equipment, measure trees, and create 3D scans of rocks thrown at the trees for later analysis. The team also recorded chimpanzee nests, feeding traces, and vocalizations along the trails. Their camp was located beside the Fefine River, which continues flowing through the dry season and provides an important water source for wildlife.

A Decade of Stone Throwing

The team found that most sites first identified by the Pan African Programme and revisited in 2017 remained active when Nakano and Kalan’s team returned in 2026. Chimpanzees have returned to these same trees to throw rocks for more than ten years.

The video and audio collected during this trip will allow the team to identify the age and sex of individual stone-throwers and observe how nearby chimpanzees respond to these events. This data could help the researchers determine the purpose of this behavior.

A Landscape Under Threat

Chimpanzees’ habitat in Guinea-Bissau is becoming increasingly threatened by industrial mining. During fieldwork, the researchers discovered boreholes dug to explore bauxite, the ore used to produce aluminum. Although bauxite mining might help promote economic development, comparable operations in neighboring Guinea have caused habitat loss and pollution, with negative effects on both wildlife and local communities. The country’s political instability also presents challenges for environmental oversight.

Nakano and Kalan emphasize that losing these stone-throwing sites would be both a cultural and ecological loss, erasing a documented example of primate material culture.

What’s Still Unknown

Nakano and Kalan are still analyzing the footage from this field season, but the main question of why chimpanzees throw stones at these specific trees remains unanswered. Still, the evidence collected by the cameras and recorders could help determine whether the behavior functions as territorial signaling, long-distance communication, or something else entirely.

Austin Burgess is a writer and researcher with a background in sales, marketing, and data analytics. He holds an MBA, a Bachelor of Science in Business Administration, and a data analytics certification. His work focuses on breaking scientific developments, with an emphasis on emerging biology, cognitive neuroscience, and archaeological discoveries.

Residents Near Former California Nuclear Site Report More Chronic Illness, New Study Finds

3 September 2026 at 12:59

A new study published in Risk Analysis found that residents living within five miles of the former Santa Susana Field Laboratory reported autoimmune disorders at more than four times the rate of those living 11 to 15 miles away.

Researchers from the University of Southern California led the study, shifting focus beyond the cancer statistics that have dominated discussion of the site for years. Instead, they examined health conditions and protective behavior among residents of a higher-income community living near a contaminated site, rather than the lower-income communities typically studied in environmental risk research.

An Unused Meltdown Superfund

Located in the Simi Hills northwest of Los Angeles, the Santa Susana Field Laboratory hosted rocket engine testing from 1949 to 2006 and nuclear reactor operations from 1953 to 1980. In 1959, a partial meltdown occurred at the site, which later became associated with radioactive and chemical contamination in soil and groundwater both on and beyond the property. Some have described the accident as the worst nuclear accident in U.S. history.

Although SSFL was designated a Superfund-eligible site in 1989, it has never been added to the National Priorities List. As a result, the site has not been cleaned up through the standard federal Superfund process.

Previous health studies did not find a significant increase in most cancers among those who lived near the site. A 1992 California Department of Health Services report also concluded that people living near SSFL were not at increased risk of developing cancers associated with radiation exposure. However, many residents and advocacy groups still believe that contamination from the Santa Susana Field Laboratory may be negatively impacting community health.

Testing What Money Can and Can’t Buy

Most Superfund sites are located in low-income areas, with 62% of nearby households earning less than $50,000 a year nationwide. The Santa Susana Field Laboratory is different, as it is surrounded by higher-income neighborhoods. This gave the USC team an opportunity to examine how residents with greater financial resources respond to environmental hazards in their community.

Led by Jenna Blyler of the USC Wrigley Institute for Environment and Sustainability, the team surveyed 475 residents living within 15 miles of the site. More than half (56%) reported household incomes of $100,000 or more.

Illness That Tracks With Distance

The study found that 18% of residents living within five miles of the Santa Susana Field Laboratory reported autoimmune disorders, as compared to 4% of those living between 11 and 15 miles from it. Similarly, 15% of residents living within five miles reported metabolic and endocrine disorders, compared with 2% of those living 11 to 15 miles away.

Over one third of residents said they had received at least one chronic diagnosis since moving to the area, a rate similar to the national average of 38%. This result is notable because chronic illness is usually less common in higher-income communities.

Fear as a Motivator

“We expected to see wealthier people take more actions to protect themselves given their greater capacity to cope and affect change,” Blyler said. “Instead, fear of the contamination was what motivated protective action, rather than their perceived ability to manage the risks.”

The study also found that residents were more likely to adopt protective measures if they believed those measures were expensive. The finding runs counter to the researchers’ expectations and to previous research suggesting that higher costs can discourage protective behavior.

Blyler and her coauthor, Joseph Árvai, suggest two possible reasons for this result. The community may be able to afford costs that would prevent other groups from taking action, or residents may see a higher price as a sign that a precaution is effective and worth the investment.

What the Study Can’t Answer

The authors note several limitations of the study. The research is based on self-reported diagnoses collected at one point in time, and it does not show that contamination from the Santa Susana Field Laboratory directly caused the health conditions residents reported.

The researchers also found that health anxiety partially explained the relationship between existing illness and protective behavior, but the study could not determine why certain conditions were more frequently reported closer to SSFL.

Future studies using objective health data and longer-term follow-up could help determine whether the reported patterns reflect actual differences in disease prevalence and whether environmental exposure plays a role.

Austin Burgess is a writer and researcher with a background in sales, marketing, and data analytics. He holds an MBA, a Bachelor of Science in Business Administration, and a data analytics certification. His work focuses on breaking scientific developments, with an emphasis on emerging biology, cognitive neuroscience, and archaeological discoveries.

Scientists Just Found a New Way to Investigate How Extinct Giants Ended Up in Australia’s Underwater Caves

24 August 2026 at 13:21

A recent analysis of bones found in two separate underwater cave systems in South Australia has provided researchers with a new framework for investigating how animal remains, including those of extinct megafauna, came to rest in these submerged environments. 

Well-preserved bones have often been found in submerged caves, but interpreting how they accumulated and what happened to them afterward has been difficult. Researchers have had limited tools for determining the environmental processes that alter remains over time.

The new study, led by Griffith University PhD candidate Meg Walker and Professor Julien Louys of the Australian Research Centre for Human Evolution, identifies physical, chemical, and molecular markers that can provide clues about the environmental conditions each specimen experienced. The findings were published in PLOS One.

Reading the Fingerprints Left on Cave Bones

With help from specialist cave divers from the Cave Divers Association of Australia, Walker’s team examined animal bones recovered from Green Waterhole and Gouldens Sinkhole, two underwater cave systems near Mount Gambier, South Australia. Gouldens Sinkhole reaches 63 meters deep through a nearly 30-meter-wide shaft.

The researchers used radiocarbon dating methods on 41 specimens and examined them at various scales, starting with a visual evaluation of spatial distribution and surface wear before progressing to portable X-ray fluorescence, scanning electron microscopy, and protein analysis. Using these techniques, the researchers identified chemical residue, signs of bacterial damage, and traces of ancient DNA. The group also identified changes associated with different preservation environments by comparing submerged bones with those recovered from nearby dry caves.

Light, Algae, and Total Darkness

Light played an important role in some of the most noticeable changes to the bones. Near the cave entrances, where sunlight was available, algae and aquatic plants grew on the bone surfaces and left black biological stains, while cyanobacteria produced circular etchings and tunnels on the outer surfaces. Deeper within the caves, in areas where sunlight did not reach, the bones mostly stayed the same and retained their original characteristics.

This distinction is important because it shows that staining alone does not indicate that a bone was buried in sediment or fully submerged, as previously assumed. Instead, it shows that the bone was simply exposed to light.

A Different Kind of Damage on Dry Land

Bones from the dry sections of the cave systems showed different patterns. In the absence of water and algae, land-based bacteria penetrated the bone from within, while plant roots created long grooves on the surface as they grew in search of nutrients. These features are distinct from those observed in submerged specimens.

Cows, Kangaroos, and One Very Specific Sheep

The bones in the team’s study were not from ancient megafauna, belonging instead to cattle, kangaroos, emus, sheep, pigs, dingoes, rabbits, possums, quolls, and swamp rats. European settlers likely deposited the specimens in the caves after they arrived in the Mount Gambier region in the 1840s. DNA tests showed that one bone came from a Merino sheep.

Walker’s team built a reliable reference set by choosing bones they could date accurately and species they could clearly identify, with the aim that, going forward, this will help researchers use the same methods on older fossils that are harder to study.

A Deeper Mystery Still Submerged

The ultimate goal is to apply this framework to older material. Caves in the Mount Gambier region, such as Tank Cave and Englebrechts Cave, have yielded remains of Australia’s Pleistocene megafauna, including Diprotodon, a large marsupial similar in size to a rhinoceros, Thylacoleo carnifex, the largest known marsupial predator, and short-faced kangaroos that reached about 2 meters in height. Some of these fossils have remained undisturbed for more than 60,000 years.

Using Walker’s framework when looking at these specimens might help researchers understand how Australia’s megafauna fossils accumulated and could also provide a method for investigating factors such as human activity and environmental change that caused their extinction.

“This study has delivered the first framework for interpreting how megafauna fossils formed, survived, and changed in underwater caves,” Walker said. “It will provide archaeologists and paleontologists worldwide with a powerful new tool for reconstructing past environments and histories in these challenging conditions.”

Researchers have yet to determine whether applying the framework to much older megafauna remains will reveal similar patterns. Divers and scientists are still working to investigate the region’s submerged fossil record.

Austin Burgess is a writer and researcher with a background in sales, marketing, and data analytics. He holds an MBA, a Bachelor of Science in Business Administration, and a data analytics certification. His work focuses on breaking scientific developments, with an emphasis on emerging biology, cognitive neuroscience, and archaeological discoveries.

Scientists Used Lasers and Citizen Scientists to Find a “Lost World” of Giant Trees

22 August 2026 at 13:10

After ten years of fieldwork in Taiwan’s remote mountain regions, researchers have identified an 84.1-meter (276-foot) Taiwania fir, now recognized as the tallest tree documented in East Asia. The team also found dense forests containing dozens of giant Taiwania firs, suggesting that other giant trees may remain hidden in Taiwan’s rugged interior.

The study, published in Frontiers in Forests and Global Change, was conducted by a team led by Rebecca Chia-Chun Hsu of the Institute of Taiwan Forestry Research, in collaboration with researchers Chi-Kuei Wang and Chung-Cheng Lee of National Cheng Kung University. Starting in 2014, the group, known as the Taiwan tree seekers, located and measured trees that had previously gone unrecorded by combining traditional field surveys with laser-based mapping and the help of citizen scientists.

The researchers found that the giant trees generally grow at elevations of about 2,087 meters and on slopes with an average inclination of 40 degrees. This combination of elevation and rugged terrain makes conventional tree surveys extremely difficult.

A Decade of Ground-Truthing

In August 2014, a systematic search began when scientists from the Taiwan Forestry Research Institute visited the Cilan conservation area to measure the ‘Chilan Three Sisters’, a group of Taiwania firs known locally but not formally recorded. The tallest tree was 69.3 meters high and had a trunk almost three meters wide. The Tree Project, a group of professional climbers from Australia, photographed the trees in 2017 and helped draw greater attention to Taiwan’s giant forests.

During a subsequent expedition near Mt. Benya and Great Ghost Lake, the team hiked for four days with their equipment to reach the study area. This experience showed how difficult it is to estimate the height of giant trees from the ground, since visual estimates can be unreliable in densely wooded, multi-layered old-growth forests. Although the team measured one tree at 71.7 meters, they concluded that ground-based surveys alone would not be sufficient for such a large and complex landscape.

LiDAR and a Problem With the Landscape

To improve their search, Hsu’s team collaborated with Wang and Lee’s remote sensing group at National Cheng Kung University and adopted LiDAR technology. LiDAR uses laser pulses from aircraft to create three-dimensional models of the forest, including estimates of tree height. However, Taiwan’s rugged topography caused the automated software to misinterpret cliffs and abrupt elevation changes as extremely tall trees.

Human reviewers proved more effective than the automated software at identifying these geological false positives. In 2020, hundreds of citizen scientists began examining the LiDAR profile images manually to distinguish real cases from artifacts. By the end of 2022, the Taiwan Giant Tree Map had identified 941 trees taller than 65 meters.

The researchers concluded that combining airborne laser scanning with crowdsourced image reviews and expert analysis can greatly reduce terrain-related errors in estimating tree heights.

Finding the “Heaven Sword”

In 2023, the mapping project led the team to a candidate for Taiwan’s tallest tree, which could be reached after traveling 20 kilometers down a river and then spending two days climbing. A direct measurement established the tree’s height at 84.1 meters, making it the tallest tree ever documented in Taiwan and East Asia. The team called it the ‘Heaven Sword of the Da’an River’. The Indigenous Rukai people have a name for trees of this kind and describe them as ones that ‘hit the moon’. By early 2026, researchers had documented 10 Taiwania firs taller than 70 meters, including two that exceeded 80 meters.

The mapping effort also brought the team back to the Great Ghost Lake region, nearly ten years after their initial visit. There, they identified about 30 large Taiwania firs growing together in an ancient stand, which the team began calling ‘temples of giants.’ In a hectare of forest near Mt. Benya, they recorded 11 individual trees exceeding 65 meters in height.

What the Giants Are Storing

The importance of these forests goes beyond their height. In 2024, Hsu’s team, in collaboration with 15 citizen scientists, surveyed Tao Tree Valley, home to Taiwan’s third-tallest tree, to determine how much carbon the forest stores. They found a carbon density of 1,384.5 megagrams per hectare, without including the root systems. The estimate is comparable to carbon-storage densities reported for some of the world’s most carbon-rich forests, including giant eucalypt forests in Tasmania. The researchers noted that their estimate did not include root systems and may have underestimated the forest’s true carbon storage.

The researchers still do not know how many other giant trees remain hidden in Taiwan’s mountains. However, the combination of LiDAR mapping, citizen science, and field verification gives them a way to search terrain that would otherwise be nearly impossible to survey systematically.

Austin Burgess is a writer and researcher with a background in sales, marketing, and data analytics. He holds an MBA, a Bachelor of Science in Business Administration, and a data analytics certification. His work focuses on breaking scientific developments, with an emphasis on emerging biology, cognitive neuroscience, and archaeological discoveries.

Bumblebees Are Turning Up Dead on Sidewalks This Summer, and Heat Isn’t the Only Culprit

21 August 2026 at 21:47

This summer, people across the UK may be noticing more dead bumblebees on the pavement than usual, and scientists say there is a reason behind the phenomenon.

The pattern results from a combination of naturally short life cycles, elevated temperatures, and long-term changes in land use, according to Senior Lecturer in Zoology Alex Dittrich of Nottingham Trent University, who explains that extreme heat, pesticides, habitat loss, and other environmental pressures can make survival more difficult for these important pollinators.

Bumblebee workers usually only live for four to six weeks. The colony is arranged to allow this turnover; if a worker dies, the other bees in the hive remove the body to prevent the spread of disease. It is therefore not uncommon to find dead bees on sidewalks. Although this rate of death is normal, further environmental stressors can make survival even more difficult.

A Summer of Record Heat

June recently saw the warmest temperatures ever recorded in England, while the UK as a whole experienced its second-highest June temperatures on record. High temperatures affect bumblebees by interfering with their development, reproduction, and ability to fly.

These temperatures can also push colonies beyond the limits of their natural cooling mechanisms; although bees keep the temperature inside the hive down by waving their wings, this method is only effective up to certain temperatures, and prolonged heat exposure can alter development and threaten long-term population stability.

Higher temperatures also interfere with the timing of biological events. Climate change can also contribute to phenological mismatch, in which species that depend on one another become out of sync with seasonal changes. For instance, bees might emerge from hibernation before flowers are available, or flowers may bloom and then die off before the bees are active. In these situations, the bees are left without access to nectar at crucial times.

Pesticides Compound the Problem

Chemical exposure also affects bumblebee populations. Although the EU and UK have banned the most harmful neonicotinoids, other insecticides like organophosphates, synthetic pyrethroids, and phenylpyrazoles are still widely used. These chemicals can paralyze or kill bees and also interfere with their ability to navigate. Herbicides can also reduce the availability of important food sources, such as dandelions, which are a major source of nectar at the beginning of the season.

Habitat loss also makes these problems worse. Housing development, intensive agriculture, and road construction have reduced the amount of natural land available for bees to nest and find food. The loss of these habitats reduces the ability of bee populations to cope with extra stress caused by heat and chemical exposure, worsening the impact of their naturally brief lifespans.

Why It Matters Beyond the Garden

The number of European wild bee species considered at risk of extinction has increased from 77 in 2014 to at least 172 now, about 10% of the total species assessed. Bees pollinate an estimated 75% of global crops and play a significant role in pollinating nearly 90% of flowering plants.

Dittrich suggests leaving the herbicide out when dealing with dandelions, letting parts of the lawn grow uncut, planting native species, and exploring non-chemical pest-control options first, using chemical treatments sparingly. For a bee struggling on hot pavement, a mixture of two parts sugar to one part water can help revive it. If it is safe to do so, people can also move the bee to a shady spot or flower.

While these measures will not eliminate the wider pressures affecting bumblebees, they can reduce some of the stressors that make it harder for them to survive. As temperatures rise and habitats keep changing, it will become more important to ensure that bees have reliable sources of food and shelter.

Austin Burgess is a writer and researcher with a background in sales, marketing, and data analytics. He holds an MBA, a Bachelor of Science in Business Administration, and a data analytics certification. His work focuses on breaking scientific developments, with an emphasis on emerging biology, cognitive neuroscience, and archaeological discoveries.

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