I recommend getting these really early on. They aren't hard to tame once you get a bow and arrow, and try to bolas it if you can. Make sure to bring some narco berries and stuff some fish in him. He's really good to have in not only the early game but throughout the game. If you put him on 'Huntnand Retrieve' mode and whistle to attack a dodo or other small creature, he will drag it body over to you wrapped in a golden haze. Now when you harvest the body, it will give you prime meat. That's why I recommend using him everytime you grind prime meat. Arguably commiting genocide on dodos is better than killing a bronto for prime meat, yes they may be annoying in the wild, but I'd recommend grabbing one soon.