Discover the origin and purpose of the structures of living things, from why baboons have swollen bottoms to the ...

A University of Arizona study has uncovered a surprising relationship between an animal's body temperature and its likelihood of evolving into an herbivore. The study, published in the journal Global ...

University of Cape Town (UCT) researchers have collected clear evidence—over a 23 year period between 1976 and 1999—that climate change is shrinking animals' body sizes. Associate Professor Res ...

Warm-blooded animal groups with higher body temperatures have lower amounts of rapid eye movement (REM) sleep, while those with lower body temperatures have more REM sleep, according to new research ...

Biologists have launched a database of marine animals’ body sizes that they say could help preserve biodiversity in Earth’s oceans. Why bother measuring animals’ body size? In an article in Global ...

New research in fruit flies elucidates how the genes that direct animal body shape work. Vaclav Hykes/EyeEm via Getty Images Why do human look like humans, rather than like chimps? Although we share ...

Discover 14 incredible animals that thrive in some of Earth's harshest environments, from frozen Antarctica to scorching ...

Some animals have pushed body design to such an extreme that they seem to break the basic rules of what a creature can look ...