Flip Nicklin / Humpback Whale (Megaptera novaeangliae) tail slapping at sunrise, Lahaina, Maui, Hawaii
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Chase Dekker / Orca (Orcinus orca) male tail slapping, Monterey Bay, California
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Tony Wu / Humpback whale (Megaptera novaeangliae) executing a dramatic tail slap, throwing up a cascade of water with its powerful fluke, Vava'u, Tonga, South Pacific
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Wild Wonders of Europe / Zupanc / Savica waterfall (Slap Savica) Triglav National Park, Slovenia, August 2009
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Wild Wonders of Europe / Zupanc / Savica waterfall (Slap Savica) Triglav National Park, Slovenia, August 2009
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Guy Edwardes / Icicles on frozen Slap Pericnik, Vrata Valley, Gorenjska, Triglavski National Park, Julian Alps, Slovenia, January 2006
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Wild Wonders of Europe / Biancarelli / Plitvicka Slap and Sastavci waterfalls, Plitvice Lakes National Park, Croatia, October 2008
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Michael Quinton / American Beaver (Castor canadensis) slapping water with tail in boreal pond, Alaska
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TOM WALMSLEY / Hectors dolphin ventral tail slap {Cephalorhynchus hectori} Akaroa, New Zealand
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Gary Bell/ Oceanwide / Humpback Whale (Megaptera novaeangliae) tail slapping, Coffs Harbor, Solitary Islands Marine Park, New South Wales, Australia
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David Pattyn / Humpback whale (Megaptera novaeangliae) raising both pectoral fins to slap, Puerto Lopez , Santa Elena Peninsula, Manabi Province, Ecuador, July
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Guy Edwardes / Frozen waterfall, Slap Pericnik, Gorenjska, Vrata Valley, Slovenia.
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Eladio Fernandez / Humpback whale (Megaptera novaeanglae) turns on its back to 'fin slap' a behavior thought to request companionship from another whale. Hispaniola, Dominican Republic.
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Ralph Pace / Humpback Whale (Megaptera novaeangliae) tail slapping, Maui, Hawaii, image taken under NMFS Permit # 19225
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Hiroya Minakuchi / Southern Right Whale (Eubalaena australis) tail slapping, Peninsula Valdez, Argentina
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Tony Wu / Indo-Pacific Bottlenose dolphin (Tursiops aduncus) tail slap, South Africa, Indian Ocean.
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Doug Perrine / RF- Killer whale / orca (Orcinus orca) southern resident juvenile breaches whilst adult tail slaps surface. Southern Vancouver Island, Strait of Juan de Fuca, British Columbia, Canada, September. (Th...
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Tony Wu / Humpback whale (Megaptera novaeangliae) female executing a reverse tail slap, with dorsal surface hitting the surface of the ocean, Vava'u, Tonga, South Pacific
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Tony Wu / Humpback whale (Megaptera novaeangliae) female executing a reverse tail slap, with dorsal surface hitting the surface of the ocean, Vava'u, Tonga, South Pacific
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Tony Wu / Humpback whale (Megaptera novaeangliae) male on its side, getting ready to slap its pectoral fin on the ocean surface, Vava'u, Tonga, South Pacific
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Tony Wu / Humpback whale (Megaptera novaeangliae) female performing a tail slap, Vava'u, Tonga, South Pacific
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Tony Wu / Humpback whale (Megaptera novaeangliae) female extending her pectoral flukes into the air to slap the water for attention from males, Vava'u, Tonga, South Pacific
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Tony Wu / Humpback whale (Megaptera novangliaea) executing an energetic tail slap, creating a cascade of seawater, Vava'u, Tonga, South Pacific
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Tony Wu / Humpback whale (Megaptera novaeangliae) executing a powerful tail slap, sending water flying in all directions, South Africa.
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Tony Wu / Humpback whale (Megaptera novaeangliae) adult female executing a reverse tail slap, with dorsal surface hitting the surface of the ocean, Vava'u, Tonga, South Pacific
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Hiroya Minakuchi / Orca (Orcinus orca) tail slapping, Hokkaido, Japan
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Alex Hyde / Veliki Slap, the largest waterfall in this image, and Sastavci series of waterfalls, Plitvice Lakes National Park, Croatia. November.
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Alex Hyde / 78 metre high Grand Waterfall (Veliki Slap), Plitvice Lakes National Park, Croatia. January.
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Roland Seitre / Humpback Whale (Megaptera novaeangliae) tail slapping, Hervey Bay, Queensland, Australia
Charlie Summers / Orca / Killer Whale (Orcinus orca) using its tail to slap the surface to stun herring. Frederick Sound, Alaska, July.
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Nick Upton / Overview of tourists on boardwalk and bridges, dwarfed by the Great waterfall (Veliki Slap) above and Sastavci waterfall below them, Plitvice Lakes National Park, Croatia, July 2010.
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Nick Upton / The great waterfall (Veliki Slap) tumbling 70 metres down karst limestone cliffs at Plitvice Lakes National Park, with stands of flowering Hemp agrimony (Eupatorium cannabinum) in the foreground, Croa...
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Matthias Breiter / Orca (Orcinus orca) playing, Queen Charlotte Sound, British Columbia, Canada
Hiroya Minakuchi / Orca (Orcinus orca) pectoral slap, Prince William Sound, Alaska
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Hiroya Minakuchi / Orca (Orcinus orca) pectoral slap, Prince William Sound, Alaska
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Flip Nicklin / Humpback Whale (Megaptera novaeangliae) female courted by cooperating causesd bubbles by slapping surface with pectoral fin, Maui, Hawaii - notice must accompany publication; photo obtained under NMFS...
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Wild Wonders of Europe / Zupanc / Savica waterfall (Slap Savica) Triglav National Park, Slovenia, August 2009
Guy Edwardes / Close-up showing inside of icicle, Slap Pericnik, Vrata Valley, Gorenjska, Triglavski National Park, Julian Alps, Slovenia, January 2006
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Guy Edwardes / Icicles on frozen Slap Pericnik, Vrata Valley, Gorenjska, Triglavski National Park, Julian Alps, Slovenia, January 2006
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Guy Edwardes / Icicles on frozen Slap Pericnik, Vrata Valley, Gorenjska, Triglavski National Park, Julian Alps, Slovenia, January 2006
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Guy Edwardes / Icicles on frozen Slap Pericnik, Vrata Valley, Gorenjska, Triglavski National Park, Julian Alps, Slovenia, January 2006
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Guy Edwardes / Icicles on frozen Slap Pericnik, Vrata Valley, Gorenjska, Triglavski National Park, Julian Alps, Slovenia, January 2006
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Wild Wonders of Europe / Biancarelli / Veliki slap (The big waterfall) Plitvicka Slap, Lower Lakes, Plitvice Lakes National Park, Croatia, October 2008
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Wild Wonders of Europe / Biancarelli / Veliki slap (The big waterfall) Plitvicka Slap, Lower Lakes, Plitvice Lakes National Park, Croatia, October 2008
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Wild Wonders of Europe / Biancarelli / Plitvicka Slap waterfalls, Plitvice Lakes National park, Croatia, October 2008
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Wild Wonders of Europe / Biancarelli / Veliki slap (The big waterfall) Plitvicka Slap, Lower Lakes, Plitvice Lakes National Park, Croatia, October 2008
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Suzi Eszterhas / Orca (Orcinus orca) tail slapping, Prince William Sound, Alaska
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Suzi Eszterhas / Orca (Orcinus orca) tail slapping, Prince William Sound, Alaska
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Suzi Eszterhas / Orca (Orcinus orca) tail slapping, Prince William Sound, Alaska
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Hiroya Minakuchi / Southern Right Whale (Eubalaena australis) tail slap in sunset, Valdes Peninsula, Argentina
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Hiroya Minakuchi / Southern Right Whale (Eubalaena australis) tail slap at sunset, Valdes Peninsula, Argentina
Tony Wu / Adult female Humpback whale (Megaptera novaeangliae) executing reverse tail slap, part of extended play with her calf, which was executing tail slaps and breaching. South Pacific ocean, Tonga.
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Chase Dekker / Humpback Whale (Megaptera novaeangliae) tail slapping, Monterey Bay, California
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Chase Dekker / Humpback Whale (Megaptera novaeangliae) tail slapping, Monterey Bay, California
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Ralph Pace / Humpback Whale (Megaptera novaeangliae) pair tail slapping, Maui, Hawaii, image taken under NMFS Permit # 19225
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Ralph Pace / Humpback Whale (Megaptera novaeangliae) tail slapping, Maui, Hawaii, image taken under NMFS Permit # 19225
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Ralph Pace / Humpback Whale (Megaptera novaeangliae) yearling tail slapping, Maui, Hawaii, image taken under NMFS Permit # 19225