There are too many jelly fish in this ocean. Somebody's gotta go.
The blue ones are poisinous but the pink ones are harmless and very tasty.
This turtle hasn't eaten in a while and he needs some chow.
he knows the poison of a blue jelly fish would kill him if he ate it, so he goes for a harmless pink one. It's the perfect snack for him and his friends.
With all the pink jelly fishes being eaten, us blue ones can reproduce together and have 100% blue offspring.
After some time all the pink jelly fishes died and now it is just blue jelly fish. And they will be there until some new predator that is immune to their poison comes around. But for now, they control the sea.