If possible, try to find a lonely one as possible or have good weapons. These are a knockout tame and a long one at that. They spawn in areas with allos, rexes and more, and aggroing them could lead to them getting attacked or killed. A trap is reccomended as another big feature is that they often spawn in large groups and will attack if approached. And attacking them is hard as they will knock you off your mount and hit like trucks. If you knock one out, put berry’s, (presumably) veggies, or kibble into their inventory along with lots of narcotics. If possible, I think it’s more worth it to knock out a parent and kill it while unconscious. Then claim the baby and cryopod it because they are SLOW.