Ok, so once, when I tamed a lv 31 otter when I was lv 4 and I still have him now. I went everywhere with him, and by the time I set up a wooden base he was lv 40 and took down a dilo on his own. But the best bit is when I was doing a quest ( I ply on mobile) when I was lv 37, and I didn’t bring any of my raptors. Just my little otter, which I finally named nibbles. I was done with the quest, an allo pack came along. 4 of them. My now lv 67 nibbles jumped of my arm for some reason and started to attack. I thought he was dead, but he was putting up a fight. I swiftly made some spears but when I looked up he had slaughtered 3 of the allos and the 3rd was stuck behind a rock. My nibbles only had 172 HP left out of somewhere near 700-1000. This guy is still alive and has many more stories to tell. If this gets some ups, I’ll tell u another one.