Most people would call it a "field mouse," but a scientist would ask, "Was it Peromyscus maniculatus? Or Peromyscus leucopus?

What happened to all the megafauna? From moas to mammoths, many large animals went extinct between 50 and 10,000 years ago.

Or … could it be a jaguar? With their stealthy hunting habits and similar builds, patterns and hues, the two large cats can ...

Marshall says the new genus has officially been named “Traskasaura sandrae,” and that it was a “39-foot-long, long-necked ...