These things are little monsters. I had a level 55 and it killed an level 100 alpha raptor by itself without taking more than like 500 damage before i noticed (which i only did becauee i got 5 crosbows and an alpha raptor claw thrown into my inventory.)

Anyway these guys are great little buddies to have around 24/7 they have really good weight at the low levels so they make good backpacks.

Only issue is taming them on berries takes ages when they're over level 10