The United States' Only Known Jaguar Caught On Video In Arizona

Alone and surrounded by the wilderness, this big cat prowls on. 

He was a little camera shy, but El Jefe, the United States' only known jaguar, has been captured on film for the first time ever. 

Researchers from Conservation CATalyst and the Center for Biological Diversity spent three years tracking down the big cat. Their 41 seconds of footage are the fruits of their intense labor. 

El Jefe, which means "The Boss" in Spanish, was spotted by remote sensor cameras in the Santa Rita Mountains, only 25 miles from Tucson, Arizona. 

Thought to be the last jaguar in the United States, El Jefe is over 125 miles away from the closest population of breeding jaguars in Sonora, Mexico. 

He wasn't always alone. Up until 2009, "Macho B," another jaguar, was a proud resident of the United States. Unfortunately, Macho B was compassionately euthanized that year, leaving El Jefe alone. 

Despite being alone, there is a major threat to El Jefe. A proposed copper mine is slated to open smack dab in the middle of El Jefe's territory. Chris Bugbee, one of Conservation CATalyst's biologists, says, "The Rosemont Mine would destroy El Jefe's home and severely hamstring recovery of jaguars in the United States."

Here's to hoping El Jefe isn't the last of the jaguars in the United States, but merely the first of many more.