They are not very difficult to tame, just bola, shot it with tranks, trank arrows, or just hit it in the face with a wooden club until it gets knocked out. Then just feed it berries, and wait until it tames.
Congrats, now you have a creature that has infinite stamina, collects tons of berries, and it is a seed-making machine.
Gets rare flowers to the point that they don't feel rare. Infinite stamina in run mode along with a good base weight, along with the ability to use tools on its back makes for an all purpose tame that makes the trike feel completely obsolete, cannot recommend enough.