But that leaves a question of why would we still want to fly. If we ever were aquatic apes we surely are not now. Well there are apparently behaviors that are linked to genes. I recently saw a documentary on dog behavior that said that if you want to punish a Border Collie, you don't give him any sheep to herd. Retrievers one and all think that it is the greatest thing in the world to run and get something that has fallen from the sky and bring it to the master.
Sled dogs have an innate urge to pull.
They will be frustrated and somehow not feel whole if they are not pulling something. An aquatic ape will adapt to land, but will still feel the urge to effortlessly glide. Take away the opportunity to fly from an aquatic ape and you will frustrate him. Perhaps we still feel the need to glide like a dolphin does. Hence our dreams of flight.