A deer (pl.: deer) or true deer is a hoofed ruminant ungulate of the family Cervidae (informally the deer family). Cervidae is divided into subfamilies Cervinae (which includes muntjac, elk, red deer, and fallow deer) and Capreolinae (which includes reindeer, white-tailed deer, roe deer, and moose).

Deer, any of 43 species of hoofed ruminants in the order Artiodactyla, notable for having two large and two small hooves on each foot and also for having antlers in the males of most species and in the females of one species. Deer are native to all continents except Australia and Antarctica.

Deer are primarily herbivorous mammals that constitute Cervidae, the second most diverse family of artiodactyls after bovids (family Bovidae). There are 55 extant species of deer, most of which are characterized by long limbs adapted for running and jumping.

The red deer is the fourth-largest extant deer species, behind the moose, elk, and sambar deer. It is a ruminant, eating its food in two stages and having an even number of toes on each hoof, like camels, goats, and cattle.

Deer aren't strictly "browsers" or "grazers"-different species (and seasons) shift along that spectrum, shaping forests and grasslands in different ways. Several deer undertake major migrations (notably Rangifer), while others keep small home ranges and rely on cover and stealth.

Learn all about the different types of deer - with information about what they eat, where they live, how much they weigh, how long they live, are they endangered, and more.

The word 'deer' is both singular and plural. A male deer is called a stag or buck, a female deer is called a hind or doe, and a young deer is called a fawn, kid or calf.

Explore the diverse world of deer species, from White-Tailed to Red Deer, and learn more about their habitat, types, and characteristics.

Deer - Antlers, Habitats, Grazers: Deer (family Cervidae) are divided into two distinct groups based on their different foot structures: Old World deer (subfamily Cervinae); and New World deer (subfamily Capreolinae).

Explore all 60 deer species, found natively across 5 continents; their distribution, physical characteristics, conservation status, and more! ...more