Its when let's say, a bird, eats another bird. So a species of some sort eating the same species.

MMM YUMMY YUMMY INTESTINES

Shadow

*he continued to bite them*

*The tiny cat kept noming onto them

*the tiny cat already finished eating Shadow*

(Pip cannot die- you can legit cut off his head and it comes back on-) *the tiny cat continued to feast on Shadow ignoring the sword in its chest*

*the tiny cat was almost done feasting on shadow due to the fact only shadows neck was left to the tiny cat to eat* (oh yeah Pip has a tummy like kirby so he can eat anything and wont die/get fatter)