For the past several decades, cows have been found all over the American West mutilated in strange and horrific ways. Often drained of blood, with tongues and sexual organs removed, ranchers, local police, and even the FBI have struggled to explain these mysterious mutilations.

This week on the Notcast, we talk to a rancher who witnessed the results of cattle mutilations himself, before diving deep into the theories as to whether aliens, cults or just natural predators are to blame.

Show notes are on Ripleys.com. You can join the Notcast conversation on Twitter or drop us a line at [email protected].