Caribou eking out an existence here are some of the last of the great caribou herds that once roamed throughout the northern United States. Not only do snowmobiles scare the docile animals and change ...

Most animals have some ways to communicate with one another. Caribou and elk both communicate but with different sounds. An elk is known for its bugling sounds during the breeding season.

The antlered deer migrate more miles than any other land-based animal but don't always take the same path each year. To figure out how and why caribou migrate during the winter, Eliezer Gurarie ...