Squirrel Caution
There are more than 200 squirrel species worldwide, from tree squirrels and flying squirrels to chipmunks and marmots. They're all in the Sciuridae family, which is native to every continent except Australia and Antarctica.
Adult tree squirrels normally live alone, but they sometimes nest in groups during severe cold spells. A group of squirrels is called a "scurry" or "dray."