A fascinating short video by the BBC. Apparently, the mobula rays which make the biggest slash when leaping from the ocean have the greatest chance of finding a mate.  Often referred to as “devil rays”, “flying mobula” or simply “flying rays”, they grow to up to 17 ft from wing tip to wing tip and can weigh over a ton. They are capable of truly impressive belly flops.

Mobula Rays belly flop to attract a mate