Doug Perrine / White spotted eagle ray from underneath {Aetobatus narinari} Caribbean Sea (Non-ex).

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.

Franco Banfi / Bull ray (Pteromylaeus bovinus), South Tenerife, Canary Islands, Atlantic Ocean.

Franco Banfi / Bull ray (Pteromylaeus bovinus), South Tenerife, Canary Islands, Atlantic Ocean.

Shane Gross / Spotted eagle rays (Aetobatus narinari) through a large window on the wreck of the former mine sweeper C-56 Juan Escutia. Cancun, Mexico.

Alex Mustard / Reef manta (Mobula alfredi) visiting a cleaning station on a coral reef with a school of Onespot snappers (Lutjanus monostigma), Oriental sweetlips (Plectorhinchus vittatus) and Sabre squirrelfish (Sa...

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 / Spotted eagle ray (Aetobatus narinari) school, Kagi kandhu, ;North Male Atoll, Maldives, Indian Ocean.

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

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

Jordi Chias / Mobula / Chilean devil ray (Mobula tarapacana) with remora (Remora brachyptera) and Amberjacks (Serila dumerilli) Santa Maria Island, Azores, Atlantic Ocean

Franco Banfi / Devilrays (Mobula tarapacana) two viewed from below, Ambrosio dive site, Santa Maria Island, Azores, Portugal, Atlantic Ocean.

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

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.

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

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.

Jeff Rotman / Ocellated eagle ray (Aetobatus ocellatus), underside, Natal Coast, South Africa.

Brandon Cole / Top view of Pacific white-spotted Eagle Ray (Aetobatus laticeps), Galapagos, Pacific Ocean

Doug Perrine / White spotted eagle ray {Aetobatus narinari} Caribbean

Doug Perrine / White spotted eagle ray {Aetobatus narinari} Caribbean

Franco Banfi / Large school of Munk's devil rays (Mobula munkiana) aggregating. West Coast of Baja California Peninsula, Mexico. Pacific Ocean.

Franco Banfi / Large school of Munk's devil rays (Mobula munkiana) aggregating. West Coast of Baja California Peninsula, Mexico. Pacific Ocean.

Franco Banfi / Large school of Munk's devil rays (Mobula munkiana) aggregating. West Coast of Baja California Peninsula, Mexico. Pacific Ocean.

Alex Mustard / RF - Reef manta (Mobula alfredi) swimming in open water with a Remora (Remora remora) swimming below, North Ari Atoll, Maldives, Indian Ocean. (This image may be licensed either as rights managed or r...

Alex Mustard / Group of Spotted eagle rays (Aetobatus narinari) swimming above the outer reef drop off, Laamu Atoll, Maldives, Indian Ocean.

Alex Mustard / Two Reef manta rays (Mobula alfredi) visiting a cleaning station on a coral reef, Laamu Atoll, Maldives, Indian Ocean.

Alex Mustard / Manta ray (Mobula alfredi) with mouth open, feeding on plankton near the surface, Hanifaru Lagoon, Baa Atoll, Maldives, Indian Ocean.

Lewis Jefferies / Spotted eagle ray (Aetobatus narinari) cruising over shallow, hard coral reef, Long Canyon, Marsa Alam, Red Sea, Egypt.

Sirachai Arunrugstichai / Ocellated eagle ray (Aetobatus ocellatus) searching for food in the sand over the seafloor, Mu Koh Similan National Park, Andaman Sea, Phang-nga, Thailand.

Sirachai Arunrugstichai / Giant manta ray (Mobula birostris) with large open wound, entangled in ghost fishing nets, Mu Koh Similan National Park, Andaman, Sea, Phang-nga, Thailand.

Sirachai Arunrugstichai / Giant manta ray (Mobula birostris) swimming in the current entangled in ghost fishing nets, Andaman Sea, Mu Koh Similan National Park, Phang-nga, Thailand.

Sirachai Arunrugstichai / Ocellated eagle ray (Aetobatus ocellatus) gliding over the seabed in deep water, Mu Koh Similan National Park, Andaman Sea, Phang-nga, Thailand.

Pascal Kobeh / A huge school of Pacific cownose / Golden cownose rays (Rhinoptera steindachneri), Baja California, Sea of Cortez, Mexico.