Franco Banfi / School of Munk's devil ray, pygmy devil ray, (Mobula munkiana), feeding on plankton at night, photographed on a long exposure, Espiritu Santo Island, Sea of Cortez, Baja California, Mexico, East Pacif...

Mark Carwardine / Munk's pygmy devil ray / Munk's mobula (Mobula munkiana) large school from the air with one leaping out of the water, Baja California, Mexico

Mark Carwardine / Munk's pygmy devil ray / Munk's mobula (Mobula munkiana) large school from the air, Baja California, Mexico.

Jordi Chias / Giant Manta (Manta birostris) going overhead, Santa Maria Island, Azores, Atlantic Ocean

Jordi Chias / Giant Manta (Manta birostris) with Remoras (Remora brachyptera) attached to both wings, offshore Santa Maria Island, Azores, Atlantic Ocean

Michael Pitts / Giant manta ray (Manta birostris) swimming over a cleaning station, Maldives, Indian Ocean.

Claudio Contreras / Giant Manta Ray (Manta birostris) at cleaning station with Clarion Angelfish (Holacanthus clarionensis) San Benedicto Island, Revillagigedo Archipelago Biosphere Reserve (The Socorro Islands), Pacific...

Claudio Contreras / Giant Manta Ray (Manta birostris), San Benedicto Island, Revillagigedo Archipelago Biosphere Reserve (Socorro Islands), Pacific Ocean, Western Mexico. Vulnerable species.

Franco Banfi / Manta ray (Manta birostris), San Benedicto, Revillagigedo (Socorro) Islands, Mexico, East Pacific Ocean

Franco Banfi / Scuba diver and Manta ray (Manta birostris), San Benedicto, Revillagigedo (Socorro) Islands, Mexico, East Pacific Ocean. Model released.

Juergen Freund / Manta rays (Manta birostris) at cleaning station being cleaned by wrasses, Moluccas Islands, Indonesia.

Juergen Freund / A parade of giant manta rays (Manta birostris) at a cleaning station. North Raja Ampat, West Papua, Indonesia,

Juergen Freund / Giant manta ray (Manta birostris) at a cleaning station, seen from behind. North Raja Ampat, West Papua, Indonesia

Juergen Freund / Giant manta ray (Manta birostris) at a cleaning station. North Raja Ampat, West Papua, Indonesia.

Juergen Freund / Giant manta ray (Manta birostris) at a cleaning station with diver swimming behind it. North Raja Ampat, West Papua, Indonesia.

Juergen Freund / Giant manta rays (Manta birostris) at a cleaning station. North Raja Ampat, West Papua, Indonesia.

Juergen Freund / Giant manta ray (Manta birostris) at a cleaning station with diver looking up at it. North Raja Ampat, West Papua, Indonesia, February 2010

Alex Mustard / Large female Giant Pacific Manta Ray (Manta birostris) swimming below surf crashing into Roca Partida, Revillagigedos Islands, Mexico. East Pacific Ocean. February

Alex Mustard / Giant Pacific Manta Ray (Manta birostris) portrait with Remora fish (Echeneididae) Roca Partida, Revillagigedos Islands, Mexico. East Pacific Ocean. February

Michael Pitts / Pacific manta ray {Manta alfredi} Yap, Micronesia

Michael Pitts / Pacific manta rays {Manta alfredi} Yap, Micronesia

Michael Pitts / Pacific manta ray feeding {Manta alfredi} Yap, Micronesia.

DOC WHITE / Underside view of Manta Ray {Manta birostris} Mexico,

Alex Mustard / Reef manta (Mobula alfredi) female swimming close to a coral reef, while cleaner wrasse (Labroides dimidiatus), tiny by comparison, pick parasites from her lips. Misool, Raja Ampat, West Papua, Indone...

Alex Mustard / Portrait of a large female Reef manta ray (Mobula alfredi) swimming over a coral reef. Misool, Raja Ampat, West Papua, Indonesia. Ceram Sea. Tropical West Pacific Ocean.

Alex Mustard / Pair of large reef manta rays (Mobula alfredi) swim over a coral reef cleaning station. Misool, Raja Ampat, West Papua, Indonesia. Ceram Sea. Tropical West Pacific Ocean.

Mark Carwardine / Munk's pygmy devil ray / Munk's mobula (Mobula munkiana) large school, with some leaping into the air. Aerial view. Baja California, Mexico

Mark Carwardine / Munk's pygmy devil ray / Munk's mobula (Mobula munkiana) large school from the air with one leaping out of the water, Baja California, Mexico

Mark Carwardine / Munk's pygmy devil ray / Munk's mobula (Mobula munkiana) large school from the air, Baja California, Mexico

Mark Carwardine / Munk's pygmy devil ray / Munk's mobula (Mobula munkiana) large school next to boat aerial view. Baja California, Mexico

Mark Carwardine / Munk's pygmy devil ray / Munk's mobula (Mobula munkiana) large school next to boat aerial view. Baja California, Mexico

Mark Carwardine / Munk's pygmy devil ray / Munk's mobula (Mobula munkiana) large school from the air, Baja California, Mexico

David Fleetham / Reef manta ray (Manta alfredi) with black colour variation cruising over coral drop off. Fiji.

Alex Mustard / Manta ray (Mobula birostris) approaching a reef to be cleaned. Cousins Rock, San Salvador Island, Santiago Island, Galapagos National Park, Galapagos Islands. East Pacific Ocean.

Alex Mustard / Oceanic manta (Mobula birostris). Cousins Rock, San Salvador Island, Santiago Island, Galapagos National Park, Galapagos Islands. East Pacific Ocean.

David Fleetham / Reef manta ray (Manta alfredi) swimming over shallows with diver in background. West Maui, Hawaii. September 2010. Model released.

Stephane Granzotto / Whale shark (Rhincodon typus) and Manta ray (Manta birostris) during a sardine run, Yucatan, Mexico.

David Fleetham / Reef manta ray (Manta alfredi) over hard coral off West Maui, Hawaii.

David Fleetham / Manta ray (Manta alfredi) with cleaner wrasse, Manta Reef, Kandavu, Fiji.

David Fleetham / Manta ray (Manta alfredi) with cleaner wrasse, Manta Reef, Kandavu, Fiji.

David Fleetham / Manta ray (Manta birostris) gliding over a cleaning station in M'il Channel, Yap, Micronesia.

David Fleetham / Manta Ray (Manta alfredi) with one cephalic fin curled and the other extended. M'il Channel, Yap, Micronesia.

David Fleetham / Reef Manta Ray (Manta alfredi) cruising overhead with diver in background. Ukumehame, Maui, Hawaii.

David Fleetham / Pacific manta ray (Manta alfredi) cruising through shallows of Ukumehame, Maui, Hawaii.

David Fleetham / Manta ray (Manta birostris) entangled in and towing a fishing net. Yap, Micronesia.

David Fleetham / Manta ray (Manta birostris) at cleaning station in M'il Channel, Yap, Micronesia.

David Fleetham / Two Manta rays (Manta birostris) feeding in Mi'l channel off the island of Yap, Micronesia.

David Fleetham / Manta ray (Manta birostris) breaking the surface with its mouth open, feeding in Mi'l channel off the island of Yap, Micronesia.

David Fleetham / Split-level image of swimming pool and ship / restaurant named The S/V Mnuw (Sea Hawk) at the Manta Ray Bay Hotel on the island of Yap, Micronesia. September 2007.

David Fleetham / Sunrise viewed from the Manta Ray Bay Hotel on the island of Yap, Micronesia. September 2007. ^^^ The vessel in the foreground serves as the hotel's restaurant. It is a South Seas Schooner from Indone...

Jordi Chias / Giant manta (Manta birtostris) Ari Atoll, Maldives islands, Indian Ocean

Jordi Chias / Giant manta (Manta birtostris) swimming over the reef, Ari Atoll, Maldives Islands. Indian Ocean

Jordi Chias / Giant manta (Manta birtostris) swimming over a cleaning station, Malet Atoll, Maldives islands.

Franco Banfi / Manta ray (Manta birostris) Tubbataha Reef Natural Park, UNESCO World Heritage Site, Sulu Sea, Cagayancillo, Palawan, Philippines

Franco Banfi / School of Munk's devil ray, (Mobula munkiana), feeding on plankton at night, Espiritu Santo Island, Sea of Cortez, Baja California, Mexico, East Pacific Ocean

Franco Banfi / Scuba diver and school of Munk's devil ray, pygmy devil ray, (Mobula munkiana), feeding on plankton at night, Espiritu Santo Island, Sea of Cortez, Baja California, Mexico, East Pacific Ocean

Franco Banfi / School of Munk's devil ray, (Mobula munkiana), feeding on plankton at night, Espiritu Santo Island, Sea of Cortez, Baja California, Mexico, East Pacific Ocean

Franco Banfi / School of Munk's devil ray, (Mobula munkiana), feeding on plankton at night, Espiritu Santo Island, Sea of Cortez, Baja California, Mexico, East Pacific Ocean

Franco Banfi / School of Munk's devil ray, (Mobula munkiana), feeding on plankton at night, Espiritu Santo Island, Sea of Cortez, Baja California, Mexico, East Pacific Ocean

Franco Banfi / School of Munk's devil ray, (Mobula munkiana), feeding on plankton at night, Espiritu Santo Island, Sea of Cortez, Baja California, Mexico, East Pacific Ocean

Franco Banfi / School of Munk's devil ray, (Mobula munkiana), feeding on plankton at night, Espiritu Santo Island, Sea of Cortez, Baja California, Mexico, East Pacific Ocean

Franco Banfi / School of Munk's devil ray, (Mobula munkiana), feeding on plankton at night, Espiritu Santo Island, Sea of Cortez, Baja California, Mexico, East Pacific Ocean

Franco Banfi / School of Munk's devil ray (Mobula munkiana), feeding on plankton at night, photographed on a long exposure, Espiritu Santo Island, Sea of Cortez, Baja California, Mexico, East Pacific Ocean

Claudio Contreras / Giant Manta Ray (Manta birostris), with Remoras (Echeneididae) Socorro Island, Revillagigedo Archipelago Biosphere Reserve (Socorro Islands), Pacific Ocean, Western Mexico, March

Claudio Contreras / Giant manta ray (Manta birostris), Roca Partida Islet, Revillagigedo Archipelago Biosphere Reserve (Socorro Islands), Pacific Ocean, Western Mexico, March. Vulnerable,

Claudio Contreras / Giant Manta Ray (Manta birostris), IUCN Vulnerable, Socorro Island, Revillagigedo Archipelago Biosphere Reserve (Socorro Islands), Pacific Ocean, Western Mexico, March

Claudio Contreras / Giant Manta Ray (Manta birostris), IUCN Vulnerable, Socorro Island, Revillagigedo Archipelago Biosphere Reserve (Socorro Islands), Pacific Ocean, Western Mexico, March

Claudio Contreras / Giant Manta Ray (Manta birostris) and Black Jack (Caranx lugubris), Giant Manta Ray IUCN Vulnerable, San Benedicto Island, Revillagigedo Archipelago Biosphere Reserve (Socorro Islands), Pacific Ocean,...

Claudio Contreras / Giant Manta Ray (Manta birostris) and Black Jack (Caranx lugubris), Giant Manta Ray IUCN Vulnerable, San Benedicto Island, Revillagigedo Archipelago Biosphere Reserve (Socorro Islands), Pacific Ocean,...

Claudio Contreras / Black Jack (Caranx lugubris) near Giant Manta Ray (Manta birostris), tail, IUCN Vulnerable, Socorro Island, Revillagigedo Archipelago Biosphere Reserve (Socorro Islands), Pacific Ocean, Western Mexic...

Claudio Contreras / Giant Manta Ray (Manta birostris), IUCN Vulnerable, Socorro Island, Revillagigedo Archipelago Biosphere Reserve (Socorro Islands), Pacific Ocean, Western Mexico, March

Claudio Contreras / Giant Manta Ray (Manta birostris) and diver, San Benedicto Island, Revillagigedo Archipelago Biosphere Reserve / Archipielago de Revillagigedo UNESCO Natural World Heritage Site (Socorro Islands), Pac...

Claudio Contreras / Giant Manta Ray (Manta birostris), San Benedicto Island, Revillagigedo Archipelago Biosphere Reserve / Archipielago de Revillagigedo UNESCO Natural World Heritage Site (Socorro Islands), Pacific Ocean...

Claudio Contreras / Giant Manta Ray (Manta birostris) and diver, IUCN Vulnerable, San Benedicto Island, Revillagigedo Archipelago Biosphere Reserve / Archipielago de Revillagigedo UNESCO Natural World Heritage Site (Soco...

Mark Carwardine / Munk's mobula ray / devilray (Mobula munkiana) leaping out of the water, Sea of Cortez, Gulf of California, Baja California, Mexico, Pacific Ocean, April

Mark Carwardine / Munk's mobula ray / devilray (Mobula munkiana) leaping out of the water, Sea of Cortez, Gulf of California, Baja California, Mexico, Pacific Ocean, April

Mark Carwardine / Munk's mobula ray / devilray (Mobula munkiana) leaping out of the water, Sea of Cortez, Gulf of California, Baja California, Mexico, Pacific Ocean, April

Mark Carwardine / Munk's mobula ray / devilray (Mobula munkiana) leaping out of the water, Sea of Cortez, Gulf of California, Baja California, Mexico, Pacific Ocean, April

Mark Carwardine / Munk's mobula ray / devilray (Mobula munkiana) leaping out of the water, Sea of Cortez, Gulf of California, Baja California, Mexico, Pacific Ocean, April

Mark Carwardine / Munk's mobula ray / Devilray (Mobula munkiana) leaping out of the water, Sea of Cortez, Gulf of California, Baja California, Mexico, April

Mark Carwardine / Munk's mobula ray / Devilray (Mobula munkiana) leaping out of the water, Sea of Cortez, Gulf of California, Baja California, Mexico, April

Mark Carwardine / Munk's mobula ray / Devilray (Mobula munkiana) leaping out of the water, Sea of Cortez, Gulf of California, Baja California, Mexico, April

Mark Carwardine / Munk's mobula ray / Devilray (Mobula munkiana) leaping out of the water, Sea of Cortez, Gulf of California, Baja California, Mexico, April

Doug Perrine / Reef manta ray (Manta alfredi) feeding on plankton attracted by light at night, among schooling Hawaiian flagtail (Kuhlia xenura) akako Bay, Keahole, Kona, Hawaii. August.

Doug Perrine / Reef manta ray (Manta alfredi) feeding on plankton attracted by light at night, among schooling Hawaiian flagtail (Kuhlia xenura) akako Bay, Keahole, Kona, Hawaii. August.

Franco Banfi / Giant manta ray (Manta birostris) seen from below, El Boiler dive place, San Benedicto Island, Revillagigedo Archipelago Biosphere Reserve, Socorro Islands, Western Mexico

Franco Banfi / Giant manta ray (Manta birostris) El Boiler dive place, San Benedicto Island, Revillagigedo Archipelago Biosphere Reserve, Socorro Islands, Western Mexico

Franco Banfi / Giant manta ray (Manta birostris) with scuba diver below, El Boiler dive place, San Benedicto Island, Revillagigedo Archipelago Biosphere Reserve, Socorro Islands, Western Mexico

Franco Banfi / Giant manta ray (Manta birostris) with scuba divers below, El Boiler dive place, San Benedicto Island, Revillagigedo Archipelago Biosphere Reserve, Socorro Islands, Western Mexico

Franco Banfi / Giant manta ray (Manta birostris) with scuba divers below, El Boiler dive place, San Benedicto Island, Revillagigedo Archipelago Biosphere Reserve, Socorro Islands, Western Mexico

Franco Banfi / Giant manta ray (Manta birostris) seen from above, Revillagigedo Archipelago Biosphere Reserve, Socorro Islands, Western Mexico

Franco Banfi / Giant manta ray (Manta birostris) San Benedicto Island, Revillagigedo Archipelago Biosphere Reserve, Socorro Islands, Western Mexico

Franco Banfi / Giant manta ray (Manta birostris) with remora and scuba diver, San Benedicto Island, Revillagigedo Archipelago Biosphere Reserve, Socorro Islands, Western Mexico

Franco Banfi / Giant manta ray (Manta birostris) with scuba diver, San Benedicto Island, Revillagigedo Archipelago Biosphere Reserve, Socorro Islands, Western Mexico