Yellowstone is home to several different species. The following is a list of what our wolves will have to face, both hunting, defending, and running from: 


This list consists of all the animals that wolves generally hunt. Small animals take a lot of energy to hunt, but it makes it easier for wolves who are alone. A lone wolf rarily attacks a medium to large sized animal such as bison.

Small AnimalsEdit

  • Gopher
  • Voles
  • Moles
  • Mice
  • Squirrel
  • Chipmunks
  • Rabbit
  • Hare
  • Jackrabbit
  • Beaver
  • Pika
  • Fish

Medium  to Large AnimalsEdit

These are the animals that a pack of wolves will go after. A wolf pack will generally go after bison or elk, but there are other options that are not passed up if given the chance.

White-tailed Deer Edit

White tailed deer01

These deer are generally fast and can jump a fence easily. They are difficult to catch for a wolf, and are rarely sought after due to "easier" prey in terms of speed such as bison. They can grow up to 300 pounds in the right condition, and males can grow horns that can be fatal to a wolf who goes head on with one. They can be found within the forests, meadows and near the rivers. They are rarely found alone and generally have a lookout. During spring, babies are often left alone. Wolves will sometimes get lucky and come across one, but it's very unlikley due to how still they lie still.


The bison of Yellowstone generally are herded together in the plains and meadow area. They are rarely seen alone, and their herds can reach up to the hundreds. They are robust and can weigh easily up to 1,000 pounds (450kg). They carry two horns where the males use them during the breeding season, and all use them in defense from predators such as bears, and more importantly, wolves. Bison are extremely vulnerable during the winter when the snow buries their food saurce a good 3 to 6 feet. They have poor eyesight, but their acute sense of hearing and smell makes up for it. Their calfs are very vulnerable to hungry wolves with pups during the spring.


Elk are huge animals that belong in the deer family. These hooves animals can weigh easily over 500 pounds (225kg), and the bulls can weigh up to 700 pounds (320kg). Elk are the wolves main source of food throughout Yellowstone. Bulls grow antlers than can grow up to 3 feet in length and are their main weapons for defending their herd, their right to breed, and against predators. They can kick hard which could mean the loss of a wolf's life if they are not careful. A lone elk however is vulnerable to predatation so the majority of elk stay within a large herd. Before an elk turns to face a pack of wolves, their long legs allow them to easily outrun wolves during the winter, and stay fairly far ahead in the spring and summer. Snow doesn't stop an elk thanks to their long legs, but elk are also vulnerable to starvation during the winter. Calves are generally the target for predators during the spring, and a mother elk does not have many means to defending their offspring. The spring and summer is when they are hunted the most. 


Moose are the largest species within their deer family. Cows typically can weigh between 400-700 pounds (220-350kg) while bulls can easily reach over 1,000 pounsds (450kg). Bulls grow large antlers that are used for both defense and fighting for a cow during the breeding season. They can grow very large and tall, which is their main defense againts wolves. Their long legs allow them to move over water a lot more easily than wolves, and they use water as a defense when needed. A wolf pack will very rarely attack an adult moose and instead will go for its calves. 

Mountain GoatEdit

Mountain Goat01
Mountain goats can be found in the alpine meadows and the rocky slopes of Yellowstone. They are rarely sought out by wolves due to their ability to climb steep slopes where wolves will find it difficult to keep up with them. A wolf will generally not hunt mountain goats, but will scavenge upon their fallen bodies if they happened to have missed a step or jump. Golden eagles will generally the kids and throw them off the edge. Wolves who live around the rocky area can easily scare away the eagles and steal a kill. Due to temperature increase, the mountain goats diet has changed and some move further down the cliffs to feast, leaving them vulnerable to stalking wolves.


The prognhorn are small antelope-like (but not actual antelope) mammal that is known to be one of the faster animals of the world with speeds reaching up to 45 mph. They are found in the grasslands and sagebush of Yellowstone Park in large herds. A males horns are only used during the breeding season. Their speed is their main defense, and is the major factor on why wolves will rarely give chase to them. Wolves are more of an irritation than a threat to these fast moving animals. Their endurance also outlasts a wolves. Despite their speed and endurance, a major issue for these animals is fences. Pronghorn cannot jump. A well coordinated wolf pack might be able to adapt and learn how to defeat a pronghorn and add them to the list of prey they can catch. 

Bighorn SheepEdit

Bighorn Sheep01
These sheep are found on the rocky mountains of Yellowstone Park. Very little pose a threat to these sheep other than the occasional mountain lion or a pack of wolves that have adapted to moving through the rocky terrain. Their offspring is in danger, but both ewe and rams have horns for protection. However, ewe's are still lacking for their horns and tend to forage while moving. They generally stay near the cliffs but will occasionally find themselves in a large open rocky field around the top of mountains. Their young can be vulnerable to predators who are willing to climb the steep slopes to get to them. 

Predators and CompetitionEdit

These are the animals wolves want to stay away from, or have to compete food with. Some of them are just the usual peskey coyotes, but a grizzly bear proves a real pain when they swoop in to steal a packs kill. 

List: Finish later

Black Bear

Grizzly Bear





Grey Wolf