Beavers have been hunted, trapped and exploited for their fur, meat and castoreum. Since they typically stayed in one place, trappers could easily find the animals and would kill entire families in a lodge. Ancient people appear to have believed that the castor sacs of the beaver were its testicles. Aesop's Fables describes beavers chewing off their testicles to preserve themselves from hunters, (which is impossible because a beaver's testicles are inside its body); this myth has persisted for centuries. Tools for hunting beavers included deadfalls, snares, nets, bows and arrows, spears, clubs, firearms and steel traps. Castoreum was used to bait the animals.