Mexico's jaguar population has grown significantly in recent years --- up 30% since 2010, but the largest feline in the Americas remains at risk of extinction. That’s according to the National ...

“El Jefe” — or “The Boss” — is one of the oldest jaguars on record along the frontier, one of few known to have crossed the U.S.-Mexico border University of Arizona and U.S. Fish and Wildlife Service ...

MEXICO CITY, Mexico — They call him “El Jefe,” he is at least 12 years old and his crossing of the heavily guarded U.S.-Mexico border has sparked celebrations on both sides. “El Jefe” — or “The Boss” ...

The president fielded questions on Mexico's security plans, ticket prices and delivered a message to the Mexican team ahead ...

University of Arizona and U.S. Fish and Wildlife Service via AP They call him “El Jefe,” he is at least 12 years old and his crossing of the heavily guarded U.S.-Mexico border has sparked celebrations ...