Which of the following is a mammal that is native to Virginia?

Squirrels are indeed mammals that are native to Virginia. They are part of the rodent family and are characterized by their fur-covered bodies, live births, and the presence of mammary glands which allow female squirrels to nurse their young. In Virginia, the most common types of squirrels include the Eastern Grey Squirrel and the Fox Squirrel. These animals are often found in forests, urban parks, and other habitats where they can find food such as nuts and seeds, and they play an important role in the ecosystem by aiding in the dispersal of seeds.

The other options provided, such as eagles, bluejays, and frogs, do not fit the criteria for mammals. Eagles and bluejays are birds, and frogs belong to the amphibian class. Understanding the classification of animals is crucial in biology, as it informs us about their evolutionary relationships and ecological roles within their environments.