Cheetahs don’t usually come to mind when you think about animals that live in packs – but they do form small groups called ...

Underlying this is a set of theoretical developments examining why animals live in groups in the first place and why groups are of a particular size. Here, we focus on the question of "what ...

Organisms as diverse as amoebas and elephants frequently live in groups. Why do these and many other animals form complex societies? Aa Aa Aa Organisms are inherently competitive, yet cooperation ...

They cover their long tails with smelly secretions and wave them in the air to determine which animal is more powerful. Ring-tailed lemurs live in groups known as troops. These groups may include ...

Little is known of these rare primates. Mouse lemurs are forest dwellers that live in female-dominated groups of up to 15 animals. They spend most of their time in trees, and can move nimbly from ...