Grey wolf (Canis lupus)
Grey wolves are the largest wild member of the dog family. They have a body length between 1 and 1.5 m (3.25-5 ft), a tail length between 30 and 51 cms (1-1.75 ft) and they weigh between 16 and 60 kgs (35-130 lbs).
They are mainly grey or brown but they can be various colours depending on their geographic location. Grey wolves in the Arctic areas are usually white but in other areas they can be black in colour.
The pack members communicate with each other by crouching, rolling over and chin touching or using vocalizations such as howling.