The Olmec "were-jaguar" combined features of a human and a jaguar. (The name is a parallel construction with werewolf.)

As described by Michael Coe and Rex Koontz (2002: 64), Olmec were-jaguars are usually depicted as "somewhat infantile throughout life, with the puffy features of small, fat babies, snarling mouths, toothless gums or long, curved fangs, and even claws. The heads are cleft at the top..."