It may sound surprising, but groups of hyenas will sometimes take on animals much larger than themselves, even lions. Although usually, the lion is not a full-grown male, but rather a younger lion or ...

In the wide-open savannas of sub-Saharan Africa, lions and hyenas are rarely far from each other. They share much of the same territory, hunt the same prey, and seem to constantly be sizing each other ...

Cooperative behaviour involves a trade-off between risks and rewards, and can provide benefits that are available only because of group action. Individual spotted hyenas (Crocuta crocuta) can join a ...