In the rolling green hills of California’s Briones Regional Park, not far from the urban bustle of Oakland and Berkeley, the squirrels are not what they seem. Instead of simply stuffing their cheeks with fruits,

A study reveals the first evidence of California squirrels eating voles. Experts explain why this phenomenon is critical to future behavioral discoveries in animals.

We had never seen this behavior before. Squirrels are one of the most familiar animals to people," said one scientist