Once a top dog in the southwestern United States, the Mexican gray wolf is now one of the most endangered subspecies of wolf in the world. In the late 1800’s and early 1900’s, thousands of Mexican gray wolves (also known as “el lobo” or “lobos”) prowled around central Mexico, Arizona, New Mexico, and Texas. In the 1970’s, they found the last 7 Mexican wolves in the world. With stats like these it’s no wonder that the Mexican gray wolf is considered to be one of the most endangered land mammals in the world. But there is hope! Today, their numbers in the wild are coming back in a big way thanks to very concerted conservation efforts.