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 ...

Research reveals strong social relationships make hyenas more likely to team up against lions, even when there's no obvious benefit. After more than 35 years of surveillance, Michigan State University ...

On February 4, scientists monitoring lion populations in Uganda captured nighttime thermal drone footage of two lions—brothers dubbed Jacob and Tibu by the Uganda Wildlife Authority—swimming across ...

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 ...