Why deer do not live in water?

Deer are terrestrial animals that have evolved to thrive in forested and grassy environments, where they can find food, shelter, and avoid predators. Their anatomy, including their limbs and respiratory system, is adapted for land movement rather than swimming or living in aquatic habitats. While some deer species may be able to swim, they do not possess the adaptations necessary for a fully aquatic lifestyle. Additionally, their primary food sources, such as leaves, grasses, and fruits, are found on land rather than in water.