Martha Holmes / Bluefin tuna {Thunnus thynnus} Kushimoto Tuna Farm Japan. Bluefin tuna can swim at speeds of 50mph - they would win a silver swimming medal in an animal olympics competition.
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Sue Flood / Giant bluefin tuna {Thunnus thynnus} caught on long line and then attacked by Killer whale
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Nick Hawkins / Atlantic bluefin tuna (Thunnus thynnus) jumping at surface after prey. Nova Scotia, Canada. October.
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Nick Hawkins / Atlantic bluefin tuna (Thunnus thynnus) off Antigonish, Nova Scotia, Canada. October .
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Nick Hawkins / Atlantic bluefin tuna (Thunnus thynnus) off Antigonish, Nova Scotia, Canada. October .
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Nick Hawkins / Atlantic bluefin tuna (Thunnus thynnus) off Antigonish, Nova Scotia, Canada. October .
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Nick Hawkins / Atlantic bluefin tuna (Thunnus thynnus) off Antigonish, Nova Scotia, Canada. October .
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Alex Mustard / RF - School of large Atlantic bluefin tuna (Thunnus thynnus) captive in a growing pen. Depsite looking much smaller in the photo, these fish were 1.5m (5ft) long. Malta. Mediterranean Sea. (This image...
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Pascal Kobeh / Atlantic bluefin tuna (Thunnus thynnus) within tuna farm, containing around 1000 per net. Saint Paul's Bay, Malta. Mediterranean Sea.
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Pascal Kobeh / Diver with Atlantic bluefin tuna (Thunnus thynnus) within tuna farm, containing around 1000 per net. Saint Paul's Bay, Malta. Mediterranean Sea. October 2012.
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Pascal Kobeh / Atlantic bluefin tuna (Thunnus thynnus) within tuna farm, containing around 1000 per net. Saint Paul's Bay, Malta. Mediterranean Sea.
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Pascal Kobeh / Atlantic bluefin tuna (Thunnus thynnus) within tuna farm, containing around 1000 per net. Saint Paul's Bay, Malta. Mediterranean Sea.
