Listen fokes these guys are deadly especially when they are more than one which they only ride in packs of four lol

Anyways don't avoid them u really need these guys draw then to you get in the water until your head is under then they will swim at you when they get close enough back out of the water and they will reach the limit of how close they can come to shore then u can either melee them with any melee weapon ( spear is best do not use throw attack) or use a bow and arrow not tranqs just regular arrows they will die these guys aren't really that great at health once u kill em all u can farm then using a hatchet it pick get bio toxin which is like a the narco berry times ten it will keep any dino sleep longer great for taming pteronadon and u can make shock arrows with this stuff I believe