What ecological adaptation distinguishes the woodchuck within Family Sciuridae compared to some relatives?

Answer

Specialized in creating extensive subterranean networks (fossorial).

While Family Sciuridae includes arboreal members like the common gray squirrel, the woodchuck is fundamentally a ground-dwelling, burrowing specialist, creating complex subterranean networks.

What ecological adaptation distinguishes the woodchuck within Family Sciuridae compared to some relatives?
animalmammalclassificationrodentwoodchuck