Their bite is poisonous. They can jump pretty high. And they swim really fast. After dieing 3 or 4 times I finally knocked one out (took
14 arrows) from my raft in the water and it instantly got eaten by piranhas.
Get a bow with trans arrows (1-5) for low level, go on a rock if you are low level and shoot it with tranqs. However wait for it to finish attacking animals and other Dino’s or it may be killed by them when unconscious.