VIDEO: Giant Timber Wolf Plays with Wildlife Worker

Animals and humans can develop really close, beautiful friendships.

Our survival depends on them and their survival depends on us.

Everything is linked to everything in this world.

That’s why we must do everything in our power to protect the animals and the environment.

This video shows a large timber wolf playing with its wildlife worker.

According to Live Science, wolves are large carnivores — the largest member of the dog, or Canid, family. Wolves are common to all parts of the Northern Hemisphere. They are usually shy and cautious around humans but unlike the dog, have not been domesticated at all.

The most common type of wolf is the gray wolf, or timber wolf. Adult grey wolves are 4 to 6.56 feet (120 to 200centimeters) long and weigh about 40 to 175 pounds (18 to 79 kilograms). Just like its name, the gray wolf typically has thick gray fur, although pure white or all black variations exist. Another common species, the red wolf, is a bit smaller.

They grow to around 4.5 to 5.5 feet long (137.16 to 167.64 cm) and weight 50 to 80 pounds (23 to 36 kg). The Eastern wolf, also known as Great Lakes wolf, Eastern timber wolf, Algonquin wolf or deer wolf, has been deemed a distinct species from their western cousins. Eastern wolves used to live in the northeastern United States, but now remain only in southeastern Canada.

Wolves are found in North America, Europe, Asia and North Africa. They tend to live in the remote wilderness, though red wolves prefer to live in swamps, coastal prairies and forests. Many people think wolves only live in colder climates, but wolves can live in temperatures that range from minus 70 to 120 degrees F (minus 50 to 48.8 degrees C).

Wolves hunt and travel in packs. Packs don’t consist of many members, though. Usually, a pack will have only one male and female and their young. This usually means about 10 wolves per pack, though packs as large as 30 have been recorded.

Packs have a leader, known as the alpha male. Each pack guards its territory against intruders and may even kill other wolves that are not part of their pack. Wolves are nocturnal and will hunt for food at night and sleep during the day.

Gray wolves usually eat large prey such as moose, goats, sheep and deer. Normally, the pack of wolves will find the weakest or sickest animal in a herd, circle it, and kill it together. Wolves are known to attack and kill domestic animals as well as animals they find in the wild.

Red wolves eat smaller prey such as rodents, insects and rabbits. They aren’t afraid of going outside their carnivorous diet and will eat berries on occasion, too.

Though wolves once roamed far and wide, they are very scarce, today. The International Union for Conservation of Nature and Natural Resources lists red wolves as critically endangered.

According to the National Parks Conservation Association, there are 20 to 80 red wolves currently living in the wild. The Eastern wolf is listed as a Species of Special Concern under Canada’s Species At Risk Act (SARA) and is protected. Gray wolves are not considered endangered.