A fossil of an armadillo-like mammal appears to bear cut marks from butchering by humans, suggesting people were living in South America at least 20,000 years ago, even earlier than once thought.

Stock image of a dead sea lion on the beach at Border Field State Park, near San Diego, California. Several dead sea lions have been found across South America, having died of H1N1 bird flu.

A fossil of an armadillo-like mammal appears to bear cut marks from butchering by humans, suggesting people were living in South America at least 20,000 years ago, even earlier than once thought.

A fossil of an armadillo-like mammal appears to bear cut marks from butchering by humans, suggesting people were living in South America at least 20,000 years ago, even earlier than once thought.

South American mammals present a fascinating case study in evolutionary biology, shaped by a dynamic interplay of palaeoenvironmental shifts, adaptive radiations and biogeographic isolation.

Dr. Darin Croft studies the evolution of mammals over geologic time using living mammals and the fossil record. His research focuses on the mammals of South America, a continent with a rich fossil ...

An exotic mammal native to Central and South America somehow ended up on the streets of the Pacific Northwest. On Sunday, June 23, a kinkajou — an animal in the same family as raccoons — was ...