Imagine spending your day suspended upside down in a leafy canopy, moving so slowly that even the wind seems fast. For sloths ...

An award-winning zoologist, her spirited right-hand woman, and their sloth-sniffing rescue dog team up in Costa Rica’s lush jungles for the first-ever ...

Stone Zoo in Stoneham welcomes a Linne’s two-toed sloth pup, born to Lunesta and Nero. The baby, their eighth, is thriving ...

Costa Rica has enlightened wildlife protection laws guided by the motto "when in doubt, favor nature." But the sheer number of tourists seeking wildlife encounters can stress or harm the animals ...

A lot of people wonder why sloths are slow. It's really quite simple. Sloths move so slowly that their predators just don't see them. They have got 64 million years of evolution in the game of ...