They reviewed data from 69 populations of large and medium sized North American mammal across 27 species.

In 1949 this exhibit became a sea lion pool, and by 1970 it had been converted to house small South American mammals.

This is very unique among North American small mammals.

Here's a quick quiz: Which large American mammal kills the most humans each year?

The porcupine is the only native North American mammal with antibiotics in its skin.

Among the most shy and powerful of North American mammals, mountain lions usually feed on deer or wild sheep.

Speciation and extinction in the fossil record of North American mammals.

Cope's rule and the dynamics of body mass evolution in North American mammals.

Jackrabbits are North American mammals, closely related to hares.

Peromyscus species, also known as deer mice, are common North American mammals.