"I don't know any more about it than you do, but if it's simply something to catch the air as you fall you could probably mimic something I saw a strange race of mammals doing in the region we lived in before crossing the isthmus. They had extra skin along their sides that they could grab with a hook-like claw and pull tight so they could glide over long distances." Onyx laughed as she remembered them. "They were pretty funny to watch actually, they looked so strange to us."