Tamed 2 ( lvl 125 and lvl 90 ) did some upgrading mostly to health and melee. Turned my back to cook some meat. Hear scary music, see lvl 130 Rex's corps just flying over my head.

Use gillie armor!

No gille armor all you need to do is crouch behind it and shove berries up its butt...I'm not kidding

On mobile anyway you can ride an Argi and follow him without needing camo or needing to crouch

They don't have this listed on here I don't know why, but they collect 2 x more of plant x seeds than than any anamal I have found.