Give the dolphin infinite breath.

Please allow the dolphin to breathe infinitely , as they always end up suffocating easily, both in and out of the water, which makes it impossible to keep one as a pet.Even when you swim with it in the ocean, pulling it with a rope, it ends up dying easily.So please let the dolphin have infinite respiration, just like the frog and the turtle,this will allow players to take care of the dolphin more easily.