Ernie Janes / Boat full of people watching Common Seals (Phoca vitulina) on sand bank at Blakeney Point, Norfolk, August 2013.
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Mark Carwardine / Aerial view of tourists watching a Grey whale (Eschrichtius robustus) from a boat, San Ignacio Lagoon, Baja California, Mexico, 2017.
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Mark Carwardine / Aerial view of tourists watching a Grey whale (Eschrichtius robustus) from a boat, San Ignacio Lagoon, Baja California, Mexico, 2017.
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Adrian Davies / Cliffs with Gannet (Morus bassanus) colony and tourist boat of birdwatchers, at Hermaness, Shetland, Scotland, May 2013.
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Michele Westmorland / View of Kicker Rock with boat in backdrop, San Cristobal Island, Galapagos Islands, January 2012.
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Michele Westmorland / View of Kicker Rock with boat in backdrop, San Cristobal Island, Galapagos Islands, January 2012.
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Cheryl-Samantha Owen / Man at controls of whale watching boat, Johnstone Strait, East Coast, Vancouver Island, Telegraph Cove, British Columbia.
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Cheryl-Samantha Owen / Whale watching guide gives a lecture to whale watching tourists on board about Humpback whales, Orcas and other marine mammals and the negative effects of marine pollution on these animals. Johnstone...
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Franco Banfi / Pod of Sperm whales (Physeter macrocephalus) swimming at sea surface in front of whale watching boat. Dominica. Caribbean Sea, Atlantic Ocean.
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Franco Banfi / Pod of Sperm whales (Physeter macrocephalus) swimming at sea surface between two snorkelers and whale watching boat. Dominica. Caribbean Sea, Atlantic Ocean.
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Michael Hutchinson / Humpback whale (Megaptera novaeangliae) at sea surface with people observing from whale watching boat. Monterey, California, USA. April.
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Nick Garbutt / Komodo dragon (Varanus komodoensis) male, silhouetted on remote beach at sunset, with live-aboard tourist boat in the background, Komodo Island, Komodo National Park, Indonesia. Endangered.