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Received — 19 June 2026 ⏭

Watch bison herd defend a newborn calf from wolf attack in a primeval Polish forest

✇Live Science
By: sascha.pare@futurenet.com (Sascha Pare)
19 June 2026 at 16:57

A camera trap in an ancient Polish forest has captured extremely rare and unexpected footage of wolves attacking a bison herd made up of adults, youngsters and a newborn calf, a new study shows.

The event took place on Sept. 15, 2025. Five wolves (Canis lupus) enter the camera frame, closely followed by three bison cows and the newborn calf. In the footage, the cows chase after the wolves, leaving the calf alone and exposed. The wolves then surround the calf, bite its neck and try to drag it away, but two cows come to its rescue. The wolves return and seize the calf a second time in the background of the video — however, this time the entire bison herd comes to its defense to end the attack.

The clip is from the Bialowieza Primeval Forest, the oldest and best-preserved temperate lowland forest in Europe, which hosts the world's biggest population of European bison (Bison bonasus). The forest covers 350,600 acres (141,900 hectares) on the border between Poland and Belarus. There are more than 870 bison on the Polish side, according to the new study, while the Belarussian side has roughly 730 bison.

Also known as "the king of the forest," the European bison is typically considered a non-prey species, meaning it has no predators except humans. But the footage calls this into question.

Still images from a video of wolves attacking a bison herd in Poland.

These still images from the video show (a) the wolves grabbing the newborn calf for the first time; (b) the wolves seizing the newborn calf for the second time; and (c) the bison herd forming a protective circle around the newborn calf after both attacks. (Image credit: Wijnands & Borowik, 2026. (CC BY 4.0). Mammal Research Institute, Polish Academy of Sciences.)

"To our knowledge, we present the first video-recorded evidence of wolves attacking a European bison herd in the Białowieża Primaeval Forest," researchers wrote in the study, published May 29 in the journal Ecology and Evolution. "Although the video did not capture a direct kill, it suggests that other attacks on European bison could potentially be successful."

Historical documents show that wolf attacks on European bison used to be more common, with about 8 kills recorded annually in the Bialowieza Primeval Forest between 1840 and 1849. The forest was a popular hunting ground for monarchs from the 14th century onward, explaining why such detailed records exist.

European bison went extinct in the wild in 1919, but they were reintroduced in the Bialowieza Primeval Forest in 1952. The first confirmed bison kill since then dates to the mid 1990s, and after that, it seems as though wolves stuck to a diet of roe deer (Capreolus capreolus), red deer (Cervus elaphus) and wild boar (Sus scrofa), likely because these are much easier prey than bison, the researchers wrote in the study.

But now, "our observation demonstrated that the European bison is in fact a potential prey for wolves," they wrote. "This raises questions about why predation attempts are so rare, whether the bison can still be described as a non-prey species, and what this could mean for conservation and management of the species."

An intriguing trend in the Bialowieza Primeval Forest is that wolf packs are growing in size, possibly thanks to a late 1980s hunting ban. This shift could increase wolf predation on bison in the future, because bigger packs can handle bigger prey.

"If predation on European bison, specifically young animals, occurs more frequently than previously assumed, wolves could play a small but potentially important role in the natural regulation of bison numbers," the researchers wrote in the study. "In turn, such regulation could possibly lead to mitigation of human-bison conflicts."

Received — 17 June 2026 ⏭

Why Are So Many Whales in Vancouver Waters? A Guide to Legally Spotting Them

✇Science Mag
By: SCIENMAG
17 June 2026 at 21:12

In recent years, the coastal waters of Vancouver have witnessed an unprecedented resurgence of whale activity, captivating marine biologists and local observers alike. This renewed presence, not merely anecdotal, stems from a culmination of seasonal patterns, thriving ecosystems, and impactful conservation measures. A comprehensive study led by researchers at the University of British Columbia’s Institute for the Oceans and Fisheries (IOF) has quantitatively confirmed that transient killer whales now inhabit the Salish Sea for more than two-thirds of the year. Alongside these apex predators, humpback and grey whales are increasingly frequenting these waters, signaling a dynamic shift in regional marine biodiversity.

Transient killer whales, known for their elusive nature and specialized diet of marine mammals, particularly seals and sea lions, are now commonly sighted along Vancouver’s shoreline and within the surrounding straits and harbors. Data collected from 2016 to 2023 underscores not only their presence but also their routine exploitation of these rich feeding grounds. This expanded usage correlates strongly with the rebound of pinniped populations, themselves benefiting from decades-old protections that halted their severe culling. The recovery has thus created a robust trophic cascade, enabling transient killer whales to establish a near year-round residency within the inside waters of Vancouver Island.

Humpback whales represent another remarkable comeback story in this region. Historically decimated by intense commercial whaling in the early 20th century, these baleen giants were completely extirpated from British Columbia waters by 1910. Without older generations to transmit migratory and feeding knowledge, their return to ancestral feeding grounds was lost for nearly a century. However, conservation efforts since the 1960s, including international bans on whaling and improved fisheries management, have facilitated a population recovery that now sees substantial numbers of humpbacks returning each summer to feast on abundant krill, herring, and other prey.

The presence of grey whales in areas around Vancouver is comparatively anomalous but increasingly documented. These whales typically forage offshore near Alaska, subsisting on amphipods—small crustaceans dependent on nutrient-rich algae associated with Arctic sea ice. The drastic loss of sea ice due to climate change directly undermines this fundamental food source, causing nutritional stress especially among pregnant and lactating females who must meet extraordinarily high energetic demands during migration and calf-rearing periods. Consequently, some grey whales are observed making unscheduled stops in the Salish Sea, an adaptation that reflects their deteriorating foraging options rather than traditional migratory behavior.

Studies estimate that pregnant grey whales require a daily intake of approximately 1,600 to 1,900 kilograms of prey to sustain both fetal development and energy reserves critical for postnatal care during their long migrations. Following calving, lactating females continue to consume between 1,300 and 1,600 kilograms of prey daily to nourish their calves for several months. Disruptions in prey availability, driven by climate-induced changes in sea ice and associated ecosystem dynamics, are thus placing immense physiological strain on these populations. The unfortunate consequence has been an observed increase in mortality rates, with malnourished grey whales occasionally stranding along the coastline.

This resurgence of whale activity near Vancouver not only highlights the success of targeted conservation policies but also underscores emerging challenges. Increased interactions between humans and whales necessitate rigorous adherence to safe viewing practices. Researchers advocate for maintaining substantial distances from whales—minimum thresholds are typically 200 meters for most killer whales and extend to 1,000 meters for the endangered southern resident killer whales. The regulations also stipulate 100 meters for other cetaceans, increasing to 200 meters when whales are resting or accompanied by calves. These guidelines are critical in minimizing disturbances and preventing collisions, which pose significant risks to these vulnerable animals.

Furthermore, the role of public awareness and responsible recreational boating cannot be overstated. Boaters, kayakers, and paddleboarders are urged to stay vigilant and reduce speeds when whale blowholes are sighted. The unpredictability of whale movements demands a precautionary approach to navigation within whale habitats. Educational initiatives, such as free online whale-safe boating courses offered by organizations like the Marine Education & Research Society (MERS), have proven effective tools in promoting safer human-wildlife coexistence in marine environments.

The broader implications of these findings extend into the realm of ecosystem health and global climate resilience. Whales function as keystone species, their feeding and migratory behaviors facilitating nutrient transport and productivity within marine systems. The return of diverse whale populations to coastal waters symbolizes not just ecological recovery but offers hope for restoring complex marine food webs fractured by human exploitation. Yet, the acute vulnerability of species such as grey whales to climate-driven habitat changes serves as a stark reminder of ongoing environmental threats.

Simultaneously, the study’s revelations about transient killer whales reveal a nuanced predator-prey dynamic finely attuned to regional ecosystem changes over recent decades. The resurgence of pinniped populations has provided these cetaceans with ample sustenance, allowing for sustained presence in traditionally seasonal zones. This trophic realignment invites further studies into the long-term evolutionary and behavioral adaptations of marine mammals in a rapidly changing oceanic milieu.

Whale conservation is, thus, at a critical juncture. While success stories abound, exemplified by humpback recovery, emerging stressors including climate change, ship traffic, and underwater noise pollution complicate the ecological narrative. The scientific community and policymakers must continue fostering adaptive management strategies that address these multifaceted challenges while engaging public participation for effective stewardship.

In conclusion, the intensifying presence of transient killer whales, humpbacks, and grey whales in Vancouver’s coastal waters offers a vivid testament to both nature’s resilience and the pressing need for sustained conservation vigilance. These marine mammals, emblematic of wider ocean health, depend on intact habitats, thoughtful human behaviors, and responsive environmental policies. As our understanding deepens through ongoing research, so too must our commitment to coexistence with these ocean giants, ensuring their survival amidst an era of rapid ecological transformation.

Subject of Research: Marine mammal population dynamics and conservation in Pacific Northwest coastal waters.

Article Title: Rebounding Giants: The Return of Whales to Vancouver’s Coastal Waters

News Publication Date: Not specified in the provided content.

Web References:

References:

  • Taryn Scarff et al., “Transient killer whales in the Salish Sea,” Marine Mammal Science
  • Grey whale energetics and climate impact study, Marine Mammal Science

Image Credits: Julia Adelsheim

Keywords: Whales, Cetaceans, Marine mammals, Transient killer whales, Humpback whales, Grey whales, Conservation, Climate change effects, Salish Sea, Marine ecology, Pinnipeds, Fisheries management

Received — 16 June 2026 ⏭

Elusive dwarf fox, feared extinct, photographed for the first time on island off Yucatán

✇Live Science
16 June 2026 at 15:58

An elusive dwarf fox that was feared extinct has been photographed for the first time, after being spotted near a highway in Cozumel, Mexico.

The tiny animal was part of the mysterious Cozumel fox population, a potentially undescribed species that had not been officially sighted in more than 20 years.

Cozumel foxes live only on Cozumel, an island near Cancún. Researchers know very little about these mysterious predators, which are roughly 20% to 40% smaller than their gray fox (Urocyon cinereoargenteus) cousins that live on the mainland.

Park and museum officials spotted and captured the fox in 2023 and, after a health assessment, released it back into the wild. Researchers have now shared the photographs and documented the encounter in a new study published May 4 in the journal Neotropical Biology and Conservation.

Although the rediscovery confirms that Cozumel foxes are still alive, they are likely on the brink of extinction, the study authors noted; the photographs highlight the need for focused research and conservation efforts.

"The biggest challenge facing the Cozumel fox is that we still know almost nothing about it, including its remaining population size, distribution, or ecology," study first author Travis Bayer, executive director of the conservation organization Pathos Wildlife, said in a statement. "That uncertainty alone is dangerous, because it makes effective conservation extremely difficult."

Cozumel foxes are an example of insular dwarfism, an evolutionary process in which larger animals, including fox-sized mammals, evolve to be smaller after colonizing islands, where there are limited resources and less space than on the mainland. The foxes aren't the only mammals that have shrunk on Cozumel over time; other examples include the island's critically endangered pygmy raccoons (Procyon pygmaeus) and dwarf coatis.

Archaeological evidence suggests that Cozumel foxes have lived on the island for at least 5,000 years, likely since before the arrival of the Maya within the past few millennia, and potentially for tens of thousands of years before that. Prior to this rediscovery, the last confirmed sighting of a Cozumel fox was in 2001, according to the study.

A photo of a Cozumel fox partially obscured by foliage.

This photo, taken as the fox was partially obscured by foliage next to a highway, is the first known photograph of a Cozumel fox (Image credit: Rafael Chacón)

The rediscovery began with reports of a disoriented animal wandering near the highway on the southeastern side of the island. Officials with the Parks and Museums Foundation of Cozumel located and captured the fox, an adult male, on Sep. 14, 2023. They checked its health and later released the fox in the Laguna Colombia State Reserve, a protected area just south of where it was captured.

Recent and historical sightings suggest that Cozumel foxes could have an extremely restricted range in the island's South, where nature is increasingly threatened by development, land-use change, invasive species and natural disasters, the study authors noted.

The researchers recommended surveys to determine the current distribution and size of the Cozumel fox population, along with morphological and genetic assessments to establish its evolutionary status and conservation efforts to protect its assumed habitat in southern Cozumel and minimize human-wildlife conflict.

"Ultimately, we hope this work helps move the Cozumel fox from a little-known, uncertain presence on the island to a better-understood key part of Cozumel's ecosystems," Bayer said. "We also hope it demonstrates that conservation is often most urgent when certainty is lowest and that uncertainty itself can be a call to action."

Received — 12 June 2026 ⏭
Received — 11 June 2026 ⏭
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