A Smithsonian scientist found that pygmy sloths wander inland in addition to inhabiting the mangrove fringes of their island refuge. He realized that the population size of the pygmy sloth was ...

The U.S. Fish and Wildlife Service (FWS) last week announced that the world’s rarest and smallest sloth could deserve protection under the Endangered Species Act (pdf). In response to this incident, a ...

WASHINGTON— The U.S. Fish and Wildlife Service today proposed protecting the pygmy three-toed sloth under the Endangered Species Act. The proposal responds to a 2013 petition filed after officials ...

DON’T be alarmed. This creature is the size of a small house cat, with a distaste for haste. And those Wolverine-like claws are hangers, not daggers. What if the idea of the autism spectrum is ...