In many people's perception, not all deer have antlers.

For example, the plum deer has antlers only on the males, while the females do not. However, there are deer species where both males and females grow antlers.

The deer family usually has one pair of antlers in males and none in females. Antlers are the second characteristic of males, and are their capital for courtship, competition within the species, and defense against other species.

Antlers, also called deer antlers, contain various components such as phospholipids, glycolipids, gum lipids, hormones, fatty acids, amino acids, proteins, and minerals like calcium, phosphorus, magnesium, and sodium. The amino acid components alone account for over half of the total components.

The growth and shedding of antlers are influenced by the pituitary gland and testosterone. After the breeding season, the antlers of the northern deer will be shed from the hairy mouth below. The next year, a pair of peduncles will grow from the frontal bone above the hairy mouth.

The first growth of antlers is called antlers, which contains the outer skin, hair, many blood vessels, and forked horns. As the antlers grow, the blood supply gradually reduces, and the outer skin eventually dries and sheds.

Reindeer, also known as antlered deer, is a genus of deer under the family Deeridae. Both male and female reindeer have antlers, making them unique among deer species. Reindeer is an IUCN Vulnerable Species, and the elaborate branching of the antlers is an important feature of their appearance.

Male moose also have antlers, while females do not. Bucks have dark brown body hair, while they do have light brown body hair.

The relationship between deer and humans has been historically close. About two million years ago, in the late Pleistocene period, reindeer were one of the main food sources for humans in Eurasia. Human beings relied mainly on hunting reindeer for nutrition for a few thousand years. Therefore, deer were considered sacred by our ancestors, and they were endowed with many beautiful myths and legends.

Today, deer continue to be revered by many cultures around the world for their grace and beauty.

While some deer species have antlers only on males, others have antlers on both males and females. Antlers are an essential part of males' courtship, intra-species competition, and inter-species defense. Reindeer are the only deer species where both males and females grow antlers. The relationship between deer and humans has been close for thousands of years, and they continue to be revered for their beauty and grace in many cultures around the world.

In addition to their importance in human culture and mythology, deer and their antlers play a crucial role in the ecology of many habitats. Antlers serve as a means of defense and competition among males for mating rights and as a tool for feeding and grooming. Shed antlers also provide a valuable source of nutrients for small mammals and other wildlife. However, overhunting and habitat destruction have led to declines in deer populations and disrupted ecosystems. Conservation efforts are underway to protect these iconic animals and the habitats they rely on, ensuring a healthy balance in the natural world.