Deceleration illustration. Border wall photograph by Lorie Shaull; ‘El Jefe’ photograph by USFWS. Sleek, spotted, and sinuous, the male jaguar known as El Jefe, “the boss,” roamed through the Santa Rita mountains of southeastern Arizona, captured on wildlife camera traps more than 100 times between 2011 and 2015. The last known video showed El Jefe […]
