A pack of wolves took down a bison in Yellowstone National Park and attracted a crowd of people — that the rest of the bison herd then charged into.

Six zebras wore video cameras attached to collars, capturing the equines’ daily life. Sticking with giraffes may let the two species protect each other.

Researchers from the Cluster of Excellence Collective Behavior have introduced the method YOLO-Behaviour: a new computer ...