Measure evolution in your backyard!

The eastern gray squirrel (Sciurus carolinensis) consists of two color morphs: gray and black. Squirrels of different colors occur in very different patterns in different neighborhoods…why? Help us find out. Together we can crack this nut!



Calling All Citizen Scientists!

Observe squirrels
Classify squirrels
Play Squirrel Spotter


Explore Research on Evolution

Interactive Squirrel Map
How Evolution Works
Our research


Collaborate and learn

Calling all researchers!
Calling all educators (Coming Soon!)