Tropical rainforests in Central and South America house one of the world’s most unique mammals, the slow-moving, tree-top ...

The sloth is the world's slowest mammal, so sedentary that algae grows on its furry coat. The plant gives it a greenish tint that is useful camouflage in the trees of its Central and South ...

The San Diego Zoo announced on Wednesday the results of a public poll that determines the names of two sloth bear cubs that were born back in December.