I tamed one when I was a newer player and was swimming back when I was attacked by a plesaaour and my megalodon died and I thought he died as well but I didn't see the message and fast forward two years and he was just sitting in one spot so I swam him back to my base and it took half an hower so slow but ironically it's what saved him

Fun fact the Dunkleosteus was the last of its kind to have armor around it’s head and it’s armor looks like smooth puzzle pieces

I saw one fly once, the server wasn’t even lagging to was literally flying, I saw him fly into the sunset and it was one of my favorite experiences in ark