Sloth size and habitat shifted multiple times over the past 35 million years, but human hunting likely drove the slower, ...

Biologists said an unusual animal death deep in the Florida Everglades led to a positive surprise.

Most of us are familiar with sloths, the bear-like animals that hang from trees, live life in the slow lane, take a month to ...

Working with local Indigenous people, biologist František Vejmělka spent six months surveying the creatures that live on Mount Wilhelm in Papua New Guinea ...