Ground squirrels and chipmunks carry it in pouches inside their cheeks, back to their burrows for storage. Tree squirrels bury nuts and seeds in the ground, for later eating. Their keen sense of smell helps them find the buried food. Squirrels can be very noisy. They chatter, chirp, bark, growl, squeak, and squeal.
Most squirrels mate in early spring, after much fighting and chasing.
Blind, hairless ' and helpless, they depend on the mother's milk for food. In about six weeks they emerge from the nest, fully furred, bright-eyed, and half the size of the adults. Baby squirrels are playful and pester the adults. Squirrels have four sharp claws on their front feet and five on the rear. They are used for climbing, digging, and eating.