A squirrel is a small to medium-sized rodent belonging to the family Sciuridae. They are known for their bushy tails and strong hind legs, which help them climb trees and leap between branches. Squirrels are found in various habitats, including forests, parks, and urban areas. They primarily eat nuts, seeds, fruits, and sometimes insects. There are three main types of squirrels: tree squirrels, ground squirrels, and flying squirrels. Tree squirrels are the most common and are often seen in backyards. Ground squirrels live in burrows and are typically found in open areas. Flying squirrels have a special membrane that allows them to glide between trees.