Fossil Rodent Teeth

Tiny fossil teeth of ancient rodent species found in Peru date back some 41 million years, 10 million years older than previously known examples, and indicate an evolutionary line descended from similar African species.

New Pocket Mouse Species

A new species of spiny pocket mouse (Heteromys catopterius) has been identified in the mountainous forests of the northern coast of Venezuela, a rare find for mammalian species.