The whitetail deer is a medium-sized deer native to North America. It is easily recognized by its white underside on the tail, which it raises when alarmed. Adult males, known as bucks, typically have antlers that they shed and regrow annually, while females, called does, do not have antlers. Whitetail deer are herbivores, primarily feeding on leaves, fruits, and grasses. They are most active during dawn and dusk, making them crepuscular animals. Their populations are widespread, and they adapt well to various habitats, including forests, grasslands, and suburban areas.