>>100036290In mice and rats, the way they determine if a mate is the right sex or not is that a female will start resisting and try to throw them off.
A male will just sit there because he has no idea what's going on because it's not normal. Though, homosexuality does happen in large populations of rats and mice.
But our concept of rape applied to many different animals is a strange moral phenomenon when it's hard to tell if that's wrong or just, well, nature being nature. From an evolutionary standpoint, and for the benefit of the species, that not a bad survival mechanism and it follow reason.
Murder, while worse, morally, is also not unique to humans. Especially noteable is the way chimpanzees brutally murder neighboring troops. Normally when chimps fight, they aren't trying to kill each other (but if it happens it happens and isn't rare,) they're just trying to assert dominance and control territory. When this happens, it's loud, lots of hooting, hollaring, and very showy with very aggressive displays.
Conversely, chimps have been known to do something completely different. They'll stalk out in the dead of night. Making every effort to be unseen and unheard. Deathly quiet. And they will kill other chimpanzees in their sleep, snapping necks of infants and making every effort not to be heard while they kill as many as they possibly can.
