Elks Grazing in Yellowstone
There are plenty of elk in Yellowstone and a lot of grizzlies too! The population of elk is between 10,000 and 20,000 who live in six to seven herds. The larger herds are usually made up of all females and can contain as many as 400 individuals. However, these herds can also contain males who are too young or too old to want to fight each other for dominance. The elk in the park are hunted by several predators including mountain lions and wolves. However, they are also part of the food chain for bald eagles and coyotes. We can see these elk on grassland and next to a forest. Both are food sources for these herbivores. Elk are large animals and an adult needs around 20 pounds of vegetation each day. This is predominantly grass which they graze but it can be tree bark and tree sprouts. Vegetation is not easy to break down in the digestive system. So, elks have a stomach with four chambers, and after spending the morning and the evening grazing, they find a sheltered place to rest whilst their bodies digest the meal.
Grizzlies on a Hunt
Grizzly bears do not need to eat a large amount of meat. They are a subspecies of the brown bear and they tend to live alone. Each bear needs a large area of habitat in which they roam to find food. Up to 90 percent of their diet can be plants. Typically, they enjoy berries and fruit. If they are near a river, they will catch fish. However, as we see here, they are also capable of hunting elk. An adult elk, who can run at up to 40 mph, could usually outrun a grizzly bear. However, old, ill, and young elk cannot run so fast and are easier for a bear to catch. We will never know if this one was successful!
Next Up:
Watch a Grizzly Ambush Three Moose in DenaliWatch a Gigantic Moose Chase Down a Racing GrizzlyWatch an Adult Grizzly Charge a Park Ranger in Yellowstone
