Dododex

ARK: Survival Evolved & Ascended Companion

I once was at herbivore island and i came for only one motive: taming an itchyosaurus or well the dolphin its hard to remember ok? because I heard they are common here, so I went ahead and i found one quick enough, I only managed to feed him one fish meat before it started following this thing, some mantas other dolphins and even a megalodon were following him but not attacking, can anyone explain why this happened ;-;