Some were the size of a dog. Others were as large as polar bears. A newly-discovered fossil of the ferocious hyaenodont is helping scientists understand a little bit more about the mysterious ...

An illustration of a magnifying glass. An illustration of a magnifying glass.

The Phoenix Zoo announced Monday that it had euthanized its spotted hyena, Huckleberry, on Friday. The zoo made the decision to humanely euthanize Huckleberry after his mobility severely declined, it ...

Unlike most predators, hyenas are ruled by females and thrive through hierarchy and cooperation. Their physiology allows them to process bones for calcium, while their intelligence rivals that of ...