Brandon Cole / Orca whales (Orcinus orca), three adult male resident killer whales travelling together at sunset. British Columbia, Canada, Pacific Ocean.
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Mark Carwardine / Aerial shot zooming in on a superpod of Short-beaked common dolphins (Delphinus delphis), Sea of Cortez, Baja California, Mexico.
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Doug Perrine / Yellowfin tuna (Thunnus albacares) and Pantropical spotted dolphins (Stenella attenuata) feeding on bait fish, Pacific Ocean off southern Costa Rica.
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Sergio Hanquet / Pilot whale (Globicephala macorhynchus) close-up of submerged adult. Tenerife, Canary Islands.
Shane Gross / A Bottlenose dolphin (Tursiops truncatus), heavily scarred, possibly from shark attacks, on sand bank off Eleuthera, Bahamas.
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Franco Banfi / Short-finned pilot whale (Globicephala macrorhynchus) female carrying dead calf, South Tenerife, Canary Islands, Atlantic Ocean. Runner-up in Underwater Worlds category of MontPhoto competition 2020.
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Franco Banfi / Short-finned pilot whale (Globicephala macrorhynchus) dorsal fin surfacing. South Tenerife, Canary Islands, Atlantic Ocean
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Shane Gross / Portrait of an Atlantic spotted dolphin (Stenella frontalis) reflected at surface, off Bimini, Bahamas.
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Alex Mustard / RF - Pod of Spinner dolphins (Stenella longirostris) cruise in formation over the sand of a lagoon while sleeping. Egypt. Red Sea (This image may be licensed either as rights managed or royalty free.)
Sergio Hanquet / Short-finned pilot whale (Globicephala macrorhynchus) calf with fetal lines characteristic of newborn specimens, with pod. Tenerife, Canary Islands.
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Sergio Hanquet / Short-finned pilot whale (Globicephala macrorhynchus), three in pod, light patterns on backs. Tenerife, Canary Islands.
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Alex Mustard / Spinner dolphin (Stenella longirostris) pod socialising close to surface. Fury Shoal, Sataya Reef, Marsa Alam, Egypt.
Espen Bergersen / Long-finned Pilot Whale (Globicephala melas) spyhopping, Andfjorden, Andoya, Norway. July
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Espen Bergersen / Killer whales / orcas (Orcinus orca) feeding on a bait ball of Herring. Extremely cold conditions (- 15 C) with backlit ice fog. Kvanangen, Troms, Norway. January
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Espen Bergersen / Killer whales / orcas (Orcinus orca) travelling at high speed heading for a bait ball. Kvanangen, Troms, Norway. November
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Espen Bergersen / Sperm whale {Physeter macrocephalus} showint tail fluke as it dives. Photographed just before midnight. 22 nautical miles northwest of Andenes, Northern Norway. July
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Espen Bergersen / Killer whale / orca (Orcinus orca). Spyhopping very close, showing eye. Kvanangen, Troms, Norway. November
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Espen Bergersen / Killer whales / orcas (Orcinus orca) and boat in background. Kvanangen, Troms, Norway. November
Alex Mustard / Pod of False killer whales (Pseudorca crassidens) swimming beneath the surface of the ocean. Indian Ocean, off Sri Lanka.
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Alex Mustard / Pod of False killer whales (Pseudorca crassidens) swimming beneath the surface of the ocean. Indian Ocean, off Sri Lanka.
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Tony Wu / Sperm whale (Physeter macrocephalus), ten swimming together in gathering of more than 50 individuals. Whales with flatulence and defecating. Sri Lanka.
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Nick Hawkins / Long-finned pilot whale (Globicephala melas) off Nova Scotia, Canada. October.
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SCOTLAND: The Big Picture / Common dolphin (Delphinus delphis) jumping out the water, Shetland, Scotland, UK, January.
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SCOTLAND: The Big Picture / Orca whales (Orcinus orca) pod surfacing together, Shetland, Scotland, UK. April.
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SCOTLAND: The Big Picture / Orca (Orcinus orca) surfacing and blowing, Shetland, Scotland, UK, August.
