Mark Carwardine / Spinetail devil rays (Mobula mobular) aerial view, Baja California, Mexico

Mark Carwardine / Spinetail devil rays (Mobula mobular) aerial Baja California, Mexico

Flip Nicklin / Mobula Ray (Mobula mobular) pair with attached Remoras (Remora remora), Cocos Island, Costa Rica

Flip Nicklin / Mobula Ray (Mobula mobular) swimming with attached Remoras (Remora remora), Cocos Island, Costa Rica

Sirachai Arunrugstichai / Giant devil ray (Mobula mobular) caught by a commercial purse seiner, prior to release back into the sea, Andaman Sea, Thailand, Krabi Province, Thailand, December 2015.

Mark Carwardine / Spinetail devil ray (Mobula mobular), five with reflections of sun on water, aerial view. Sea of Cortez, Baja California, Mexico. March.

Mark Carwardine / Spinetail devil ray (Mobula mobular), four with rays of light and sparkle of sun on water, aerial view. Sea of Cortez, Baja California, Mexico. March.