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Botanists are still proving Charles Darwin right with their recent identification of a new carnivorous plant growing in China’s mountainous forests.
Saxifraga candelabrum is a small, yellow flower with a taste for flesh that may one day help protect endangered crops, and researchers have revealed their detailed analysis of the carnivorous plant, conducted both in the field and the laboratory, in a recent paper published in Nature Communications.
The carnivorous plant attracts, traps, and finally digests prey, typically consisting of fruit flies and other small insects, breaking them down with a caustic enzyme that it produces.
Although it was philosopher Herbert Spencer who actually coined the phrase “survival of the fittest,” it was Charles Darwin who developed the concept behind it in his work on natural selection. With an eye towards survival in a harsh natural world, Darwin suggested in 1875 that some plants in the genus Saxifraga may be more than just beautiful flowers—they may also be very patient hunters.
Darwin’s suspicion centered on Saxifraga species other than S. candelabrum, the plant examined in the new study. However, the basis for his hypothesis holds true: the father of evolutionary biology focused on the microscopic hairs covering the plants’ surfaces, a feature shared by both the species he studied and the newly confirmed carnivorous plant.
Darwin suggested these hairs acted as a trap, capturing insects drawn to the flowers and holding them in place as the plants slowly absorbed nutrients from them. He was right.
Most carnivorous plants rely on highly specialized structures to capture prey. The iconic clamping leaves of Dionaea muscipula, better known as the Venus flytrap, are one example. Another is Low’s pitcher plant, which lures insects into its pitcher-shaped trap before digesting them.
S. candelabrum, however, employs a far subtler strategy. Rather than relying on elaborate trapping structures, it uses innocuous-looking hairs covering its flowers and stems. Once insects land on them, they discover the bristles are exceptionally sticky, trapping them until the plant can digest them.
“The discovery of Saxifraga candelabrum reminds us that many inconspicuous carnivorous plants, or plants with partial carnivorous traits, may still exist in nature,” said lead author Hang Sun, a botanist at the Kunming Institute of Botany at the Chinese Academy of Sciences.
The team’s research involved a great deal of fieldwork, observing S. candelabrum consuming insects in the mountain forests of China. However, it was their detailed genetic analysis in the lab that later showed how similar the plant was to other carnivorous species, despite its unusually benign appearance.
As part of their laboratory experiments, the researchers fed the plants fruit flies while closely monitoring their behavior. These observations allowed the team to identify digestive enzymes secreted by the plant to break down nitrogen-rich nutrients from its prey.
Identifying a new carnivorous plant species is an uncommon achievement for botanists, with the last such discovery occurring only five years ago. Even more remarkable is that the finding so closely aligns with Charles Darwin’s century-old prediction.
The researchers say the discovery is more than a botanical curiosity. A better understanding of how carnivorous plants digest insects could eventually aid the development of natural pesticides and other agricultural tools, potentially transforming these tiny predators into allies for protecting the world’s food supply.
The paper, “Identification of Carnivory in the Flowering Plant Saxifraga Via Multidisciplinary Evidence,” appeared in Nature Communications on August 4, 2026.
Ryan Whalen covers science and technology for The Debrief. He holds an MA in History and a Master of Library and Information Science with a certificate in Data Science. He can be contacted at ryan@thedebrief.org.
Just 10 days after beginning its first trial operations, the Chinese Academy of Sciences has announced that scientists operating its new High Intensity heavy-ion Accelerator Facility (HIAF) have successfully detected the “extremely rare” hafnium-153 isotope.
The international research team behind the achievement said the hafnium-153 observation is the first physics result achieved since the facility’s commissioning, which highlights its ability to aid scientists in exploring the “boundaries of the nuclear landscape.”
According to a press release from the team, which was led by the State Key Laboratory of Heavy Ion Science and Technology affiliated with the Institute of Modern Physics (IMP) of the Chinese Academy of Sciences (CAS), exploring unknown isotopes and determining the limits of nuclear existence “are key frontiers of nuclear physics.”
Located in Huizhou in South China’s Guangdong Province, the HIAF facility is a world-class next-generation heavy-ion accelerator specifically designed to explore these “key frontiers” at extremely high energies.
To search for the rare hafnium-153 isotope, HIAF’s Booster Ring (Bring) delivered a primary beam of bismuth-209 onto agraphite target. Due to the energies involved, the collision produced radioactive nuclei through a process called projectile fragmentation reactions.
To maintain purity, the team purified and transported it via the facility’s High-rigidity Radioactive Ion Beam Line (HIRIBL). Next, the beam is injected into the Spectrometer Ring. Here, the scientists were able to perform “isochronous mass spectrometry” to make precision measurements.
Although the facility’s first physics result resulted in what the team described as an “extremely low production cross section,” the experiment was still a success. After a close count, the team identified spectral signatures for ten hafnium-153 ions.
Critically, the team’s detection was independently replicated at Japan’s Radioactive Isotope Beam Factory (RIBF) at RIKEN, which also reported the observation of hafnium-153. The team said the dual detections provide mutual confirmation and “further highlight the significance of this isotope in nuclear physics research.”
When discussing the implications of the facility’s rare isotope detection, the team said that the results suggest that hafnium-153 is either a bound or weakly bound isotope, which matches predictions from nuclear mass models made before the experiments. The researchers also noted that this isotope is located within the neutron-deficient heavy nuclear region, so its detection offers scientists “a unique window into the evolution of nuclear structure and the limits of nuclear stability.”
“Its observation and precise measurement provide critical experimental information for testing nuclear models and advancing our understanding of nuclear structure,” they explained.
Beyond the scientific value, the team noted that the detection showcases the facility’s capabilities mere days into its operational phase. For example, HIAF’s high-intensity heavy-ion beams demonstrated the ability to enhance the production of rare isotopes. The facility’s high-performance beam line also successfully enabled efficient separation of the nuclei of interest, while its SRing’s isochronous mass spectrometry provides “single-ion” level sensitivity for precision identification and measurement of rare nuclei such as hafnium-153.
Moving forward, the team said that further improvements in beam intensity and increases in experimental efficiency are expected to make HIAF an increasingly important tool for discovering new isotopes. They also note the facility’s goals of aiding the investigation of nuclear properties “under extreme conditions” for such fundamental research.
“This new achievement not only marks an important advance in probing the limits of nuclear existence but also opens the door to broader scientific exploration at HIAF,” they explained.
The study “Discovery of isotope hafnium-153 near the proton drip line via isochronous mass spectrometry: extending the nuclear landscape with HIAF” was published in Science Bulletin.
Christopher Plain is a Science Fiction and Fantasy novelist and has spent the last six years as Associate News Editor and Head Science Writer at The Debrief. Follow and connect with him on X, learn about his books at plainfiction.com, or email him at christopher@thedebrief.org
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