They are also the most endangered - there are only about 175 Mexican wolves in the world today. Adult lobos usually weigh 70 to 90 pounds and are about 4 to 5 feet long, about the size of a German shepherd. They usually have coats that are a mixture of gray, brown, rust and tan over light-colored underparts. The tail, ears, and legs often are highlighted in black.
Wolves are very social animals.
The adult pair usually stays together for life. May. Caves, enlarged burrows, and areas under tree roots and rock ledges are used by Mexican wolves for shelter and den sites. Mexican wolves communicate with each other in a variety of ways. Within a pack, communication is even more varied. Wolves howl, bark, whimper and growl, and they also communicate through facial expressions, body posture and movement.