In Olmec and Amazon mythology, these were snarling spirits with the
heads of jaguars and the bodies of men, often with staring eyes, a
double row of fangs, and skin with magical healing properties. They
symbolized the supernatural world and the fertile aspect of the
jungle, and can be compared to East Asian Fox Fairies. Even today,
when a jaguar is to be killed, it must be stalked for three days
first, then killed with a wooden spear.