Squirrels are members of the family Sciuridae, a family that includes small or medium-size rodents. The squirrel family includes tree squirrels, ground squirrels, chipmunks, marmots, flying squirrels, and prairie dogs amongst other rodents.

What is the meaning of Sciuridae?

: a nearly cosmopolitan family of sciuromorph rodents consisting of the true squirrels, ground squirrels, marmots, and related rodents.

What groups are squirrels?

They belong to the Sciuridae family, which includes prairie dogs, chipmunks and marmots. There are more than 200 species of squirrels, according to the Integrated Taxonomic Information System (ITIS), and they are categorized into three types: tree squirrels, ground squirrels and flying squirrels.