In this article, we’ll answer the question:
“Are deer dangerous?”
First, you’ll find a short summary about the dangerousness of deer in general, then get specific answers about these mammals like are deer aggressive, will they bite, do deer eat humans, etc.
Deer are hoofed ruminant mammals forming the family Cervidae. There are two main groups of deer called Cervinae and Capreolinae. The Cervinae (or Old World Deer) includes the muntjac (barking deer), elk, red deer, and fallow deer. The Capreolinae includes (or New World Deer) includes the reindeer (caribou), white-tailed deer, roe deer, and moose.

Are Deer Dangerous?
Deer can be dangerous to humans and are vicious animals that can cause serious injuries in the wild. Deer are most dangerous to people when it senses a threat against itself or its young, in which case a deer will charge, kick, or stomp as a defense mechanism.
In addition to direct attacks against humans, deer can also be dangerous on the roads. These animals frequently dart across roads with little regard for the risks involved. Because of this, there are many automobile accidents involving deer that send people to the hospital.
Are Deer Aggressive?
Deer can be aggressive towards humans, especially if the deer is an adult buck during mating season. Deer bucks are territorial animals and can attack humans if they interfere with mating, food, or fawns.
Most of the time, however, deer are not aggressive animals. In their natural habit, white-tailed deer, for example, are tame animals that avoid humans at all costs. But this can change during different seasons of the year.
Female deer can become aggressive in the spring when their babies are born. They become protective and may attack people who come too close to their young deer. Bucks can also become aggressive during the mating season. This is because they are trying to mate and may see people in the wild, like hunters, as a threat.
If you see a deer acting aggressively, it is best to leave it alone and give it space. Although deer are generally not aggressive, there are certain situations in which they may exhibit aggressive behavior.
Do Deer Bite?
Deer do bite people if they come too close to them in the wild. There are documented reports of beer biting humans but it is rare.
When a person tries to get close to a wild deer, they are putting themselves at risk for a bite. To avoid getting bitten by a deer, you should never try to touch a wild deer or get too close to it. You should also be conscious of your surroundings and stay alert when in a field or park where deer might be roaming so they don’t bite you unexpectly. If you see a deer, try not to make any sudden movements or startle it.
Do Deer Attack Humans?
Deer have attacked humans on occasions but they are mostly docile animals that avoid people in nature. When deer are afraid or feel trapped they can attack humans. Deer avoid conflict unless provoked, but they may attack if they feel threatened or defend their young.
Deer typically attack by headbutting their victims with their antlers or kicking them with their hooves. The force of these attacks can cause serious injuries, including concussions, broken bones, and internal bleeding. In rare cases, deer attacks have even been fatal.
If you encounter a deer, it’s essential to stay calm and avoid making any sudden movements. If a deer does attack, try to protect your head and vital organs, and call 911 for medical help as soon as possible.
Deer are majestic creatures, but it’s important to remember that they are wild animals and should be treated with caution and respect. To avoid being attacked by a deer, it’s essential to be aware of your surroundings and take precautions to avoid conflict with these powerful animals.
Do Deer Eat Humans?
Deer do not eat humans because they are herbivores. However, there was one report with researchers recording photos of a deer eating human remains in the wild.
According to National Geographic, “In an unprecedented finding, researchers spotted a deer chewing on a human rib during a study aimed at examining how human remains decompose in the wild.” It’s suspected that deer may pursue flesh when it’s available in nature if there is a lack of minerals like phosphorous, salt, and calcium, especially in the winter months when plant life is scarce.
Overall, deer are herbivorous animals that will only eat crops, grasses, vegetation, acorns, nuts, twigs, leaves, vegetables, and fruits.
Are Deer Friendly?
You can visit our other guide about are deer friendly to find out how nice these mammals can be to people in the wild and at a zoo.

Deer Dangerous & Aggressive Summary
You now know the answer to the question about are deer dangerous.
As you discovered in this guide, deer do not eat humans or attack people unless they feel threatened. Therefore, are deer aggressive or not depends on if these mammals are being encroached upon by people in nature or in captivity.

I’m the lead editor and writer for Animal Answer Guide. I enjoy sharing expert knowledge on the various characteristics of common species within the five distinct groups of animals: amphibians, birds, fish, mammals, and reptiles.