Wildlife experts believe that Yo’oko, one of only a few wild jaguars known to range in the United States, is dead. The Tucson-based Northern Jaguar Project released a photo to the Arizona Daily Star this week showing the pelt of a skinned jaguar. The second jaguar believed to be currently living in the U.S. is another male, Sombra ― Spanish for “shadow” ― CBD spokesman Randy Serraglio told HuffPost. The most well-known jaguar to roam the U.S.