California ground squirrels are as commonplace as the seeds, acorns, and grains they’re often seen nibbling. Yet, scientists ...

When living things are faced with dramatic shifts in the world around them, they sometimes rapidly adapt to better survive.

Scientists recently found an example of evolution in real time, tucked away in the collection drawers of the Field Museum in ...

Two new studies add to the evidence that human activity, from fishing to urban development, is driving the evolution of wild ...

Chipmunks are members of the same family as squirrels. The small rodents spend most of their time aboveground, eating seeds, ...

A new Field Museum study reveals that Chicago's chipmunks have grown larger with shorter teeth due to processed human food, ...

The findings of a new study "clearly show that interfering with the environment has a detectable effect on wildlife," a ...

Feces are a valuable tool in the world of animal identification. It might sound gross, but it’s one of the best ways to ...

In general, evolution is a long, slow process of tiny changes passed down over generations, resulting in new adaptations and even new species over ...

If wide population distribution is a sure sign of an animal’s evolutionary success, then the falcon is a clear winner. The ...

A California ground squirrel in Conta Costa County runs with a vole it hunted in its mouth. Credit: Sonja Wild, UC Davis. California ground squirrels are as commonplace as the seeds, acorns, and ...