When fed peanuts, red squirrels in Britain developed weaker bites — showing that food supplements to threatened animals could have unintended side effects.

Whether it's a hanging feeder or a mounted feeder, anytime there's bird seed present, squirrels will appear. Not only do they eat all of the nutritious food you've put out for your feathered ...

A UC Davis study found a population of Bay Area ground squirrels hunting and eating voles, suggesting the species may be more flexible in its diet than previously thought.