What you’d be less likely to notice are your closest relatives. Early mammals were small, strictly nocturnal, and altogether less showy–verging on downright drab, as supported by a study ...

The house mouse (Mus musculus) is one of the most common mammals worldwide. It can be found in all parts of the United States and Southern Canada. Adults are about five to seven inches long ...

There are about 170 modern ruminant hoofed mammal species with headgear ... independently in each ruminant group or from a shared common ancestor. As a comparative biology Ph.D. student in ...

The team's methods were not applied to more basal mammals such as multituberculates, which were common at the time, because their bones were different. Professor Janis said, "We've known for a ...