Some of them, like the giant sloth or the woolly rhino, were generally gentle. Others, like the saber-toothed tiger and the dire wolves, dominated their environment with their size and fearsome fangs.

Although these sloths looked fearsome ... But humans living in ice age North America had to deal with the real thing. Dire wolves (Canis dirus) were a canine species that hunted the plains ...

After decades of successful conservation efforts and growing awareness about endangered species, poachers are once again ...

The Cleveland Metroparks Zoo announced Tuesday that a sloth bear cub was born back in December. The unnamed female cub weighed 16 ounces at birth and spent time bonding with her mother Shiva.

Sloth Crossing is the newest exhibit at the Jacksonville Zoo and Gardens. The zoo is home to a pair of sloths, Chata and Ruth. The new exhibit will be in the zoo's Play Park area. Two sloths ...