Fish

If you could ask a fish "how do you find the ocean my friend" while in the ocean have a buddy with you to preform CPR (you have been warned)

Fish are one of our earliest ancestors not the earlist but right up there so their worth having a look at-

Canabilism does not get crazier then this
The Sand tiger (shark) is one of the most intersesting animals you can find, as evolution has gifted them with the habbit to eat their own kind. Well when put like that it is not so interesting many animals eat each other (matis, merkats, Hannible Lecter ect.) so why is this shark interesting well it eats its own kind while it's in the mothers stomach, thats right. This is also called Oophay or Adelphophagy whish is basically intrauterine cannibalism you get the jist right?