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Phys.org / Yes, feral cats and foxes really have driven many Australian mammals to extinction

Millions of years of isolation have shaped Australia's extraordinary mammal fauna into species unlike anywhere else in the world, from platypus to koalas and wombats. Tragically, Australia is the world leader in mammal extinctions.

Jan 25, 2026 in Biology
Medical Xpress / Microbes living in our mouths could hold the key to obesity prevention

Scientists may have found a new way to spot early signs of obesity, which could lead to novel prevention strategies. A study published in the journal Cell Reports has discovered that people living with obesity have a distinct ...

Jan 23, 2026 in Overweight & Obesity
Phys.org / Scientists may have solved 66 million-year-old mystery of how Earth's greenhouse age ended

A 66 million-year-old mystery behind how our planet transformed from a tropical greenhouse to the ice-capped world of today has been unraveled by scientists. Their new study has revealed that Earth's massive drop in temperature ...

Jan 22, 2026 in Earth
Medical Xpress / Single gene found to influence gut bacteria balance and IBD susceptibility

Two recent studies from the University of California, Riverside, published in the same issue of Gut Microbes highlight the role of a gene called PTPN2 in protecting the gut from harmful bacteria linked to inflammatory bowel ...

Jan 24, 2026 in Gastroenterology
Phys.org / Scientists may have discovered a new extinct form of life

Prototaxites are something of a prehistoric mystery. They were the first giant organisms on land, towering over ancient landscapes at heights of up to 8 meters. They had smooth trunk-like pillars and no branches, leaves or ...

Jan 22, 2026 in Biology
Medical Xpress / Exploring the neural mechanisms that enable conscious experience

Recently, there has been convergence of thought by researchers in the fields of memory, perception, and neurology that the same neural circuitry that produces conscious memory of the past not only produces predictions of ...

Jan 24, 2026 in Neuroscience
Phys.org / A year after undermining Bredt's rule, scientists make cage-shaped, double-bonded molecules that defy expectations

Organic chemistry is packed with rules about structure and reactivity, especially when it comes to making and breaking chemical bonds. The rules governing how these bonds, which hold atoms together in molecules, form and ...

Jan 24, 2026 in Chemistry
Medical Xpress / HIV resistance to lenacapavir weakens the virus's ability to replicate

Lenacapavir (LEN) is an antiviral medication used to treat and prevent HIV/AIDS and was first approved for individuals with drug-resistant infections in 2022. While there is still no vaccine for the virus, the twice-yearly ...

Jan 23, 2026 in HIV & AIDS
Phys.org / Chandra catalog now contains 1.3 million X-ray detections across the sky

Like a recording artist who has had a long career, NASA's Chandra X-ray Observatory has a "back catalog" of cosmic recordings that is impossible to replicate. To access these X-ray tracks, or observations, the ultimate compendium ...

Jan 25, 2026 in Astronomy & Space
Medical Xpress / Learning from the Global South: How do people cope with heat?

Climate change presents tremendous challenges, especially for people in the Global South. Two international studies led by Charité—Universitätsmedizin Berlin have investigated how the population in sub-Saharan Africa ...

Jan 25, 2026 in Health
Phys.org / Microplastics in the atmosphere: Higher emissions come from land areas than from the ocean, study finds

The atmosphere is an important transport medium that carries microplastics to even the most remote parts of the world. These microplastics can be inhaled and pose a health risk to humans and animals. They can also settle ...

Jan 24, 2026 in Earth
Phys.org / Saturday Citations: A weird, extinct life form; cholesterol hacking; interspecies prosociality of whales

It's Saturday! This week, in an eminently practical analysis of the Boltzmann brain conjecture, physicists put constraints on the idea that memories could arise from random fluctuations in entropy rather than reflecting the ...

Jan 24, 2026 in Other Sciences