Yes, technically they're not tamable, but in a way, they are. Those weird things you put on your back that make you jump really far? They look A LOT like a meganeura! I know, it's weird. Maybe in ark lore, once upon a time, the overseer made them tamable. But, once humans got too much out of them, or they weren't useful enough, the overseer made them untamable. But, a couple tamed ones stayed around, and retreated to the dungeons. (This is a combo of ark mobile and regular ark lore btw.) Now, players can find them in the ark store and dungeons. Please ^ if you think this is good ark lore!
So i killed a bronto with my 3 raptors and these ants just appeared and were like i am gonna eat bronto they ate that thing in seconds before i harvest it and it happens many times before i react the body dissapears.