A stego is a very powerful ally on a trek. It has a very broad tail swing, which can knock back an entire side of attackers, and is a machine when it comes to gathering tons of berries for food and lots of thatch for temporary fires and bases.
Tamed one on top of a mountain. After I finished, started looking for a safe way down. Seconds later I spotted another one, and of the opposite gender... now I have 10. Had to commit genocide to feed all those children but now I have a group of slaughter machines