You've heard of animals chewing off a leg to escape a trap? That's an animal kind of trick. A human would remain in the trap, endure the pain, feigning death that he might kill the trapper and remove a threat to his kind. We Bene Gesserit sift people to find the humans.
- Reverend Mother Gaius Helen Mohiam
Dune, Frank Herbert.
Animal would lie to save their life, or chose to die for their beliefs. We humans would rather fight our instincts, lie about our beliefs, wait till we're unshackled, and kill the bastard(s) that threatens our family, our people, our species.