Tip 1 dont take your dino near it unless you want to have to make a tomb stone.

Tip 2 dont go swimming with it.

Tip three jump in the water attract the evil jellies and slowly swim to shore and make these losers beach themselves and then kill them with a sword.

Iv lost dinos to them monsters. I had my bird fly behin while i was steering my raft and they killed it iv learnt my lesson.