How old are deers when they grow antlers?

Male deer, called bucks or stags, are the ones who grow antlers. They begin growing their first set of antlers, which are small and unbranched, when they are between six and 18 months old. These first antlers are shed each year after the breeding season, and bucks grow a new set of antlers each spring. Antlers are made of bone and grow from special cells called pedicles that are located on the skull of the deer. The antlers reach their full size before they stop growing and harden. As part of a deer's survival, antlers are used for defense, sparring with other males, establishing dominance, and attracting females during the breeding season. The size and shape of a deer's antlers can vary, and they tend to become larger and more complex as the deer matures.