Deer are members of the order Artiodactyle, which means that they have an even number of toes on each hoof. Deer are the only animals with antlers. Antlers are usually found only on male deer.
Deer are obligate herbivores, which means that they only eat plant matter and struggle to digest meat. Deer primarily graze on grass and leaves, but they also eat nuts, fungi, grain and fruit. They eat small twigs in times of food scarcity.
A large male deer is frequently called a stag, and a female deer is called a doe. There are other terms that are specifically applied for specific types of deer.
Mule deer can be as tall as 3 to 3.5 feet at the shoulders and weigh between 100 and 300 pounds. Ranging in length from 4 to 6.5 feet, they are smaller and slower than white-tailed deer and are prevalent throughout the western parts of the United States.
A baby deer is called a fawn. This is especially true for a baby deer not yet weaned from its mother. A whitetail deer fawn is born with white spots that it loses before it is weaned.
According to the Tennessee Wildlife Resources Agency, adult white-tailed deer stand between 36 and 42 inches tall at the shoulder. Adults are about 72 inches in length, with males and females weighing an average of 203 and 155 pounds, respectively.
A baby deer is officially called a fawn. A female deer can have between one and three fawns per breeding season, depending on the availability of food and her age.