Frontiers | Science News

Science News post list

1,532 news posts in Research news

Life sciences

21 May 2025

Biodiversity in Antarctic soils may be greatly underestimated after surprising discovery

Researchers used high-throughput DNA sequencing to measure biodiversity along a transect – a succession from recently exposed to mature soil – in front of a glacier in Antarctica. To capture a detailed ecological ‘time sequence’ they distinguished between intracellular and extracellular DNA from living versus dead or locally extinct species. They found an abundance of previously unsuspected interactions between eukaryotes and prokaryotes, eg, algae with heterotrophic bacteria and fungi with actinobacteria. The results imply that novel mutualistic interactions play an essential role in shaping this system, and that biodiversity in Antarctica may be much greater than previously thought.

Environment

19 May 2025

‘Every single species is a unique product of evolution, like a work of art’: how Dr Kit Prendergast champions bees and biodiversity

Macrophotography and bee hotels introduced Dr Kit Prendergast to the world of native bees. Inspired, she began her PhD on protecting native bee biodiversity in urbanised habitats, and investigating the role of the introduced European honey bee on indigenous bee biodiversity and pollination networks. Since completing her PhD, she has worked in diverse roles as an ecological consultant, working to conduct native bee research for not-for-profits, environmental consultancies, Landcare groups, and local and state government, as well as with research institutions. She was awarded a Federal Government Grant to lead a project using bee hotels to help with the recovery of native cavity-nesting bees after the 2019/2020 bushfires. She is also a prolific science communicator, and has won a number of awards for her articles and scientific outreach.

Robotics and AI

30 Apr 2025

Deepfakes now come with a realistic heartbeat, making them harder to unmask

Current algorithms for the detection of deepfakes increasingly rely on remote pulse reading to distinguish them from genuine videos of people. Here, scientists show for the first time that the most recent deepfakes feature a global pulse rate which appears realistic. This worrying development makes it necessary for deepfake detectors to become more powerful, for example, by focusing on local variations in blood flow within the face.