We are in Kenya where we see the boss of Africa, the hippo, come up to the river to nudge these crocodiles away.

Plata y plomo: the unstable bargain the Colombia government must make with the descendants of Pablo Escobar's pet hippos.

Kakapos, which are reclusive and flightless and can live as long as humans, are found only in New Zealand. They feed on the fruit of the rimu tree.

America has a new baby pygmy hippo to obsess over. Meet Jellybean, the newest breakout star at Wildlife World Zoo in ...

As humpback whale populations recover, researchers are gaining a richer understanding of these wondrous creatures. A new study suggests it may take years for humpbacks to learn how to successfully ...

A new study sheds light on the illuminating, sometimes counterintuitive dynamics of mating and how species survive.

Beloved bald eagle parents Jackie and Shadow suffered the loss of their eggs earlier this season. In a hopeful turn, two new ones have arrived.

For just one or two nights each spring, spotted salamanders emerge from underground and go in search of vernal mating pools.