Imagine creatures that have survived since the time of dinosaurs. Species like the tuatara, sturgeon, crocodile, hagfish, ...

"I would say that any modern biologist would, or should, say that birds are reptiles," Martin Stervander, an evolutionary ...

Jan. 30, 2025 — It's not always cozy and warm in the Amazon rainforest: Cold waves can cause temperatures to drop drastically. Researchers have investigated how animals react to ...

suggesting that human ACE2 transgenic pigs are a viable large animal model for COVID-19.

Animal physiology is the scientific study of the life-supporting properties, functions and processes of animals or their parts. The discipline covers key homeostatic processes, such as the ...

February 2, 2025 • Humans actually have vestigial muscles that activate when listening closely to something, even though people lost the ability to really move their ears about 25 million years ago.

The average human lifespan is just under 80 years, but some animals live much longer. Greenland sharks, bowhead whales, koi, and red sea urchins, may all live hundreds of years. A type of clam called ...