Dear Critter Corner: Why do so many animals have trouble being around small children? There are several reasons why young children and animals tend to be a volatile combination. One reason is that ...

The animal kingdom is a world of extremes, where size, shape, and function combine in the most fascinating ways. From animals with hearts the size of small cars to microscopic animals that cannot be ...

Animals come in an extraordinary range of body shapes. A starfish looks nothing like an earthworm, a mouse, or a human. Yet even closely related species can appear radically different: corals, ...

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 ...

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 ...