EurekAlert! News by Subject: Biology - News by Subject: Biology

Biology

Updates every hour. Last Updated: 24-Dec-2025 14:11 ET (24-Dec-2025 19:11 GMT/UTC)

17-Dec-2025

Data bias reduces reliability of AI models predicting antimicrobial resistance

Helmholtz Centre for Infection Research
Peer-Reviewed Publication

Experts are increasingly turning to machine learning to predict antibiotic resistance in pathogens. With its help, resistance mechanisms can be identified based on a pathogen’s genetics. However, the results should be viewed with caution: Researchers at the Helmholtz Institute for RNA-based Infection Research (HIRI) in Würzburg have shown that the models are often less reliable than assumed. Their findings were published in the journal PLOS Biology. They contribute to the development of more reliable tools for predicting and combating antibiotic resistance.

Journal: PLOS Biology

17-Dec-2025

Studies reveal Asian and Singaporean women with PCOS may experience longer reproductive lifespans and more favorable reproductive outcomes than peers without PCOS

National University of Singapore, Yong Loo Lin School of Medicine
Peer-Reviewed Publication

An international study involving researchers from Singapore, China, USA, Europe and Brazil has identified four subtypes of polycystic ovary syndrome (PCOS). Among them, the subtype with the best reproductive and health outcomes is observed in majority of the Singapore cohort. In another related Singapore study, findings show that women with PCOS could attain successful pregnancy outcomes through fertility assistance, even at older maternal ages.

Journal: Human Reproduction Open

17-Dec-2025

Young shark species more vulnerable to extinction

University of Zurich
Peer-Reviewed Publication

Among sharks and rays, species within the first four million years of existence are significantly more likely to go extinct than older species, according to a study led by researchers from the University of Zurich based on fossils from the last 145 million years. This shows that in addition to environmental stressors, the evolutionary age of species also plays a crucial role in their survival.

16-Dec-2025

Bluey’s dad offered professorial chair in archaeology at Griffith University

Griffith University
Business Announcement

Griffith University, in Queensland, Australia, is delighted to announce renowned archaeologist and 2019 Father of the Year Dr Bandit Heeler of Bluey fame has been offered a professorial chair.

16-Dec-2025

New research identifies linked energy, immune and vascular changes in ME/CFS

Macquarie University
Peer-Reviewed Publication

A Macquarie University–led study has identified coordinated abnormalities in cellular energy, immune function and blood vessel reactivity in people with ME/CFS, shedding new light on the condition’s underlying biology

Journal: Cell Reports Medicine
Funder: National Health and Medical Research Council, Cancer Council NSW

16-Dec-2025

Paleontologists find first fossil bee nests made inside fossil bones

Florida Museum of Natural History
Peer-Reviewed Publication

Paleontologists working in a cave on the Caribbean island of Hispaniola have discovered the first-known instance of ancient bees nesting inside pre-existing fossil cavities.

Journal: Proceedings of the Royal Society B Biological Sciences

16-Dec-2025

Study links seabird nesting to shark turf wars in Hawai‘i

University of Hawaii at Manoa
Peer-Reviewed Publication

A new study reveals a critical link between seasonal seabird nesting and the movements of top marine predators in the remote Northwestern Hawaiian Islands. The research found that the annual summer arrival of fledgling seabirds at French Frigate Shoals concentrates tiger sharks in specific areas, forcing other species, including gray reef and Galapagos sharks, to drastically shift their own habitat use to avoid predation and competition.

Journal: Ecosphere
Funder: National Marine Sanctuary Program