Nick Garbutt / Adult humpback whale (Megaptera novaeangliae) diving in deep water channel. Great Bear Rainforest, British Columbia, Canada. COP26 Countdown Photo Competition 2021 Finalist. (digitally stitched image)
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Franco Banfi / Atlantic spotted dolphins, (Stenella frontalis), Formigas Islet dive site, Santa Maria Island, Azores, Portugal, Atlantic Ocean
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Wayne Wu Ying / Wild Wonders of China / Indo-Pacific humpback dolphin (Sousa chinensis) Tai O, western side of Lantau Island, Hong Kong, China
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Mark Carwardine / Fin whale (Balaenoptera physalus), two feeding, aerial view. Baja California, Mexico. March.
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Franco Banfi / Tail of Blue whale diving (Balaenoptera musculus brevicauda) possibly the pygmy sub-species of blue whale, (Balaenoptera musculus). Mirissa, Sri Lanka, Indian Ocean. Photo taken under permit
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Franco Banfi / Tail of Blue whale (Balaenoptera musculus brevicauda). This may be the pygmy sub-species of blue whale, Balaenoptera musculus. Mirissa, Sri Lanka, Indian Ocean
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Brandon Cole / Amazon river dolphin (Inia geoffrensis) split level view showing playful dolphin with mouth open. Rio Negro, Brazil.
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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Doug Perrine / Humpback whale (Megaptera novaeangliae) breaching as calf splashes down after a breach; windmills in background produce renewable energy; Hawaii Humpback Whale National Marine Sanctuary, Maui, Hawaii.
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Sergio Hanquet / Pilot whale (Globicephala macorhynchus) close-up of submerged adult. Tenerife, Canary Islands.
Nick Hawkins / Head of a North Atlantic right whale (Eubalaena glacialis) emerges from the water, Gulf of Saint Lawrence, Canada. July.
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Nick Hawkins / Tail of a North Atlantic right whale (Eubalaena glacialis) as it dives, Gulf of Saint Lawrence, Canada. July 2019. IUCN Status: Endangered.
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Richard Sidey / Extreme close-up of a Humpback whale (Megaptera novaeangliae), with eye looking directly at the camera as the whale turns, Antarctic Peninsula.
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Richard Sidey / Drone shot of four Humpback whales (Megaptera novaeangliae) bubble-net feeding, cooperatively hunting Krill (Euphausiidae), Antarctic peninsula.
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Richard Sidey / Drone shot of five Humpback whales (Megaptera novaeangliae) bubble-net feeding, cooperatively hunting Krill (Euphausiidae), Antarctic peninsula.
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Richard Sidey / Drone shot of four Humpback whales (Megaptera novaeangliae) bubble-net feeding, cooperatively hunting Krill (Euphausiidae), Antarctic peninsula.
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Richard Sidey / Drone shot of two Humpback whales (Megaptera novaeangliae) bubble-net feeding, cooperatively hunting Krill (Euphausiidae), Antarctic peninsula.
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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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Doug Perrine / Humpback whale (Megaptera novaeangliae) calf riding on mother's head. Near Nomuka Island, Ha'apai Islands, Tonga.
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Alex Mustard / Spinner dolphin (Stenella longirostris) pod socialising close to surface. Fury Shoal, Sataya Reef, Marsa Alam, Egypt.
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Gabriel Rojo / Southern right whale (Eubalaena australis) diving, with tail fluke splash. Monumento Natural Ballena Franca Austral, UNESCO World Heritage Site, Valdes Peninsula, Patagonia, Argentina.
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Tony Wu / Bowhead whale (Balaena mysticetus) aerial view, Sea of Okhotsk, Russia.
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Tony Wu / Bowhead whales (Balaena mysticetus) in shallow water, Sea of Okhotsk, Russia.
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Tony Wu / Bowhead whale (Balaena mysticetus) tail slapping,Sea of Okhotsk, Russia.
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Tony Wu / Bowhead whale (Balaena mysticetus), group socialising in shallow water, aerial view. Part of larger group of more than 50 whales congregating, Sea of Okhotsk sub-population, Russia.