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

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

Franco Banfi / Giant manta ray (Manta birostris) and two Devilrays (Mobula tarapacana), Formigas Islet dive site, Azores, Atlantic Ocean

Norbert Wu / Painted Frogfish (Antennarius pictus), Bali, Indonesia

Chris Newbert / Painted Frogfish (Antennarius pictus) pair, Indonesia

Chris Newbert / Painted Frogfish (Antennarius pictus), Indonesia

Fred Bavendam / Painted Frogfish (Antennarius pictus) pair, Lembeh Strait, Indonesia

Chris Newbert / Painted Frogfish (Antennarius pictus) with lure extended, Papua New Guinea

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

Fred Bavendam / Painted Frogfish (Antennarius pictus) sitting at the base of a yellow sponge, Bitung, North Sulawesi, Indonesia

Gary Bell/ Oceanwide / Painted Frogfish (Antennarius pictus), Anilao, Philippines