The white tail is used to communicate with other deer. Deer have long noses. Their noses are about 100 times more sensitive than a human nose. A deer s sense of smell will be the first defense from predators. The deer nose is moist all the time, a reason for its strong sense of smell.
Deer are most social during winter- when food is scarce.
In the summer a deer s coat is reddish tan. It turns medium gray in the winter. This helps deer blend in with their environment. The hairs on a deer are hollow in winter to provide better insulation from cold. Hollow hairs trap the deer's body heat.