Franco Banfi / Devilray (Mobula tarapacana) swimming near the surface with remoras, Ambrosio dive site, Santa Maria Island, Azores, Portugal, Atlantic Ocean

Franco Banfi / Devilrays (Mobula tarapacana) large group at the surface, Ambrosio dive site, Santa Maria Island, Azores, Portugal, Atlantic Ocean

Franco Banfi / Scuba diver with Devilray (Mobula tarapacana), Ambrosio dive site, Santa Maria Island, Azores, Portugal, Atlantic Ocean

Alex Mustard / Pair of Bar jacks (Caranx ruber) hunting Silversides (Atherinidae) inside cave. Devil's Grotto, George Town, Grand Cayman, Cayman Islands, British West Indies. Caribbean Sea.

Michael Pitts / Devil rays (Mobula japonica) viewed from below, South Ari atoll, Maldives.

Alex Mustard / A school of lesser devil rays (Mobula hypostoma) flying through sunbeams as they feed. Isla Mujeres, Quintana Roo, Yucatan Peninsula, Mexico. Caribbean Sea.

Nuno Sa / Manta Ray (Manta Birostris) and Devil Ray (Mobula tarapacana) in background, accompanied by Pilot Fish (Naucrates ductor) and Remora. Santa Maria Island, Azores, September.

Fred Bavendam / Golden Damselfish (Amblyglyphidodon aureus), Tonga

Luis Quinta / Devil ray {Mobula tarapacana} with remora, Azores, Atlantic

Fred Bavendam / Golden Damselfish (Amblyglyphidodon Aureus) in front of Soft Coral (Ctenocella sp), Figi

Doug Perrine / Lionfish {Pterois miles} with Seafan in foreground, Thailand

Flip Nicklin / Manta Ray (Manta birostris) with two Remora (Remora remora) attached to it, Hallcion Reef, Cocos Island, Costa Rica