Fish Dogs are an accidental genetic result of one of Gary's experiments, where he tried creating a hybrid cross between a male fish to a female dog. However, the result tended to unexpectedly expload, splattering Fish Dog body tissues all over the place.
It was later discovered that if a fish dog is carefully fried withing the first hour it was born, it becomes stable. Besided that not much is known about this species, as most people are too afraid to get near it to collect iinformation about it.
It is commonly served with chips inside a Club Penguin Times wrapper.