"Now wolves had come to follow them, great pale lobos with yellow eyes that trotted neat of foot or squatted in the shimmering heat to watch them where they made their noon halt."
Mexican Grey Wolf (Canis lupus baileyi)
Creative Commons Attribution Share AlikeMexican Grey Wolf (Canis lupus baileyi) - Credit: Eric Kilby

Up until the 1900s, the Mexican Grey Wolf (sometimes known as El Lobo) ranged throughout the Sonoran and Chihuahuan deserts from central Mexico to western Texas, southern New Mexico, and central Arizona.

Around the turn of the 20th century, reduction of deer and elk numbers by human hunters forced Mexican Wolves into attacking domestic livestock. This led to intensive efforts to eradicate the Mexican Grey Wolf, and by the 1950s, private trappers and government agencies had virtually wiped out the subspecies in the United States.

Today, only an estimated 340 Mexican Wolves survive in captivity.