Things not to do when taming one of these guys:

Don't stand while feeding it.

Make sure you're not taming one with a carno in the area (I lost 2 already from wild carnos interfering)

Don't bring any of your dinos with you for backup. Even if they're on passive all it takes is for one of these guys to walk into your dino and start fighting. You may either lose the tame or lose one of your dinos as these guys are very powerful. My level 245 took out 3 guys and 1 of their Pts and their argy. She ended up dying but she died fighting for me. R.I.P Tootsie. Pump up their health and malee damage!

More Gigantopithecus Taming & KO Tips