Age-related cognitive decline is associated with metabolic, vascular, and inflammatory changes, making it challenging to distinguish primary causes from secondary (downstream) effects. This study ...

More information: Linda Shearwin-Whyatt et al, AMHY and sex determination in egg-laying mammals, Genome Biology (2025). DOI: 10.1186/s13059-025-03546-1 ...

Linda Shearwin receives funding from the Australian Research Council. Frank Grützner does not work for, consult, own shares in or receive funding from any company or organization that would ...

It weighs only about 2 grams, roughly the same as a small coin. While it is the smallest mammal by skull size and length, the Etruscan shrew is considered the smallest by weight (around 1.8 grams).

Civets are mostly tree-loving, night-roaming mammals found across Asia and Africa. Their bodies are slender with coarse fur, and some species sport spots or stripes that help them blend into the ...

A tiny jaw fossil in east-central Greenland leads to the discovery of a new mammal-like species, Nujalikodon cassiopeiae, from 200 million years ago.

US officials say it’s an endangered species U.S. officials proposed Monday to protect the pangolin, a small, nocturnal mammal covered in scales, under the Endangered Species Act.

The U.S. Fish and Wildlife Service is proposing added protections for seven species of pangolin under the Endangered Species Act. The pangolin is a small, nocturnal mammal covered in scales.

The U.S. Fish and Wildlife Service is proposing added protections for seven species of pangolin under the Endangered Species Act. The pangolin is a small, nocturnal mammal covered in scales.

MILWAUKEE -- It's the end of an era at the Milwaukee County Zoo. The Small Mammals Building, one of the zoo's original buildings, will close by the end of the year. The zoo announced the closure ...

Biologists have confirmed the existence of a 200-million-year-old species of egg-laying mammal that has been assumed to be extinct. Suspected footage of Zaglossus attenboroughi -- the long-beaked ...