To tame them I went with a tribe member we put a bed outside of their cave in case one of us died, had a tribe member on a strong flyer and we would shoot one with a dart let it pick up the member on foot and they will get blood packs and tame themselves then other tribe member on flyer would make sure to kill off the other wild Dino’s to keep tribe member on foot and new tames alive. Then do it again and again walked out with like 5 new bats hope this helped