I tamed one named Icky... he did a fantastic job catching fish and stuck with me for ages, then I attacked a level 4 trike and god dang did it kill both my dilos, my iguanodon, my icthyosaurus, my pego and my carbonemys, and then finished me off. I returned to the scene of the fight to find Icky having not only survived but he also dealt the killing blow to the evil trike. Hooray for these guys; they’re rude, but they can kill trikes!