Mule Deer

Mule deer can run up to 45 miles per hour.
Mule Deer Scientific Classification
Scientific name
Odocoileus hemionus
Mule Deer Physical Characteristics
Brown, Grey
4 million
10 years
Top speed
45 mph
200-400 pounds
Mule Deer Distribition

“Mule deer are just one of minority deer species that can bring to life triplets or quadruplets!”

Mule Deer Recap

The mule deer is a species carefully pertaining to white- trailed and black- trailed deer. It is an effective species that is not endangered and delights in a variety in the hills of western The United States and Canada from Alaska to Mexico. Mule deer can have up to 4 children at once, a rarity for many deer species. Numerous species of predators take advantage of mule deer, yet the largest hazard to them originates from human beings with the loss and fragmentation of their environment, interruption of their migratory patterns, and also the technique of feeding them in the wintertime which spreads out condition and develops overpopulation.

Mule Deer Realities

  • Mule deer eat over 800 ranges of greenery.
  • Like livestock and sheep, mule deer are ruminants that “eat the cud,” which indicates they spew and eat formerly- ingested greenery.
  • They generally have 2 children yet can have up to 4 from time to time.
  • Mule deer are called for their big ears, which resemble those of a mule.
  • They run by “stotting” or “pronking” like gazelles: raising and touchdown stiff- legged on all 4 unguis simultaneously.

Mule Deer Scientific Name

The scientific name of the mule deer is Odocoileus hemionus. It comes from the Cervidae family of the Mammalia class. They and white- trailed deer are thought to have actually progressed from black- trailed deer. All 3 species can interbreed. There are 8 subspecies of the mule deer.

Mule Deer Appearance

Mule deer bucks grow a new set of antlers each year! This male displays a rare genetic trait known as a drop tine.
Mule deer dollars expand a brand-new collection of horns yearly! This male display screens an unusual hereditary characteristic referred to as a decrease branch, that is to claim, a branch on its horn that is directing Jeff Edwards

The mule deer is a species most identifiable by its big ears, that appear like those of a mule. They have actually been called “The Deer of the West” and are thought about a famous instance of North American wild animals.

Contrasted to various other deer species, they are average- sized, gauging typically 31- 42 inches at the shoulder. From nose to tail they are 3.9- 6.9 feet lengthy They consider 200- 400 extra pounds yet dollars, or men, have actually been recognized to obtain as hefty as 460 extra pounds. Does, or grown-up females, are smaller sized and lighter, evaluating 95- 198 extra pounds.

Their pigmentation is red- brownish to grey- brownish. They look similar to white- trailed deer, discovered in the eastern USA and Canada, yet unlike them, they have a black- tipped tail and horns that fork as they expand instead of branching from a major light beam as the white- tail deer does.

Bucks expand brand-new horns yearly beginning in March or April and finishing in August or September. After mating period, males dropped their horns generally in between January and March.

Mule Deer Habits

Some mule deer live singular lives while others remain in tiny teams of 3- 7. Males might sign up with females alike herds in the wintertime, yet they divide in springtime. They are less active and mainly quiet other than throughout breeding period or at risk when they can provide a rallying phone call similar to a dog’s bark. They can run, yet commonly favor relocating by “stotting” or “pronking”– a gazelle- like habits of embarking on the ground and touchdown with tight legs on all 4 feet.

In the warm western summer seasons, mule deer rise as high as 6,500 feet up the hills to get to awesome fields, yet in fall when negative weather condition begins they go back to decrease inclines and valleys where food resources have actually not yet been covered in snow. Some move cross countries in between their summertime and wintertime varieties. The lengthiest mule deer movement researchers have actually found remained in Wyoming and was 150 miles long. They remember their movement paths and remain to follow them also when the accessibility of food has actually transformed as a result of weather or the deterioration of their environment.

Mule Deer Environment

The mule deer is belonging to western The United States and Canada: Canada, the USA, and Mexico. It varies right from the Polar circle to the Baja Penninsula of Mexico. They have actually likewise been presented right into Argentina and Kauai, Hawaii yet have actually not gotten to multitudes there.

Mule deer favor timbers and scrublands that give appropriate food and sanctuary. They can grow in a wide variety of environment areas as seen by the big geographical degree of their environment.

Mule Deer Diet

Mule deer eat almost 800 species of plants. They surf on bushes, weeds, leaves, branches and turfs and eat beans, sheathings, nuts and acorns, berries and mushrooms when they can locate them. Near booming locations they might stray right into farmland and backyards to eat plants and landscape design growing. They are ruminants, which indicates they ingest greenery and permit it to ferment, after that spew and eat it once again.

They save fat in the autumn, specifically in October, which assists them endure till springtime when much more food appears. In serious winter times some individuals produced food for mule deer to avoid them from depriving. Wild animals firms warn versus doing so. It interferes with the all-natural migratory patterns. It likewise spreads out condition when the deer collect for food and can cause overpopulation.

Mule Deer Predators, Dangers, and Conservation Status

The primary all-natural adversaries of the mule deer are coyotes, wolves, and cougars. Bobcats, lynx, wolverines, American black bears, and grizzly bears likewise might assault them. Predators favor to assault fawns and unwell or injured deer. The primary protection they have versus all-natural predators is by escaping. They can get to rates of approximately 45 miles per hr, making them among the fastest animals in The United States and Canada.

Just like lots of animals, human task is their best lengthy- term hazard. Although the hilly locations they regular are very finely occupied by human beings, this is transforming in some locations. For instance, the population of Colorado has actually expanded by over 2.2 million individuals given that 1980! Human tasks that interfere with the all-natural environment consist of logging, mining, farming, animals grazing, fence, freeways, and suv sprawl. These can lower the dimension of the environment, discourage away the wild animals, and interfere with migratory patterns. In some locations, freeway divisions have actually created walkways or underpasses covered in greenery to permit animals to relocate securely throughout freeways. Right here’s a video clip revealing what that appears like.

Damage can likewise originate from well- indicating individuals that produced feed for them in the wintertime to avoid them from depriving. As an outcome of this quickly offered food resource, moving deer might remain to remain in a location with rough winter times instead of going on to warmer locations of their variety. Deer gathering together to feed can be found in close call with each other and can spread out condition. To the degree that feeding aids with wintertime survival, it can develop overpopulation, causing over- grazing, condition, and bigger varieties of deer roaming right into roadways and areas.

Mule Deer Reproduction, Infants and Life-span

Breeding period for mule deer starts in the autumn. Males take on each other for does. Does might mate with greater than one dollar throughout the period. Pregnancy takes 190- 200 days. Generally, the mom brings to life doubles yet very first- time mommies might just bring to life one fawn. On unusual events, does might bring to life 3 or perhaps 4 spawn. They are birthed in the springtime. The normal survival price for fawns is 50%. They stick with their mommies with the summertime and are discouraged in the autumn, after 60- 75 days of nursing. The normal deer life-span is one decade.

mule deer fawn
Mule deer are normally birthed in the Akchamczuk

Mule deer do intermix with black- trailed and white- trailed deer. Their spawn with white- trailed deer are much less adjusted to the western atmosphere, having even more trouble running and repeling predators.

Mule Deer Population

The wild mule deer population is approximated at around 4 million. They are not endangered, and are thought about an animal of “least concern” by the IUCN Red Listing of Intimidated Species


  1. Wikipedia, Available here:
  2. Britannica, Available here:
  3. Mule Deer Foundation, Available here:
  4. New York Times, Available here:
  5. North American Nature, Available here:

Relate animals

Abyssinian Guinea Pig

They are one of the oldest breeds of guinea pig

Ackie Monitor

The ackie monitor has a spiny tail which it uses as in self-defense.


The Albertonectes had the longest neck out of other Elasmosaurids.

American Bully

Though the American bully was bred to look intimidating, it makes an extremely friendly family pet!

Latest Animal News