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Dolphin 'happiness' is measured for the first time: Study reveals the marine mammals are most content when interacting with humans
Researchers studied dolphin behaviour in Parc Astérix, a theme park in France
We found a really interesting result - all dolphins look forward most to interacting with a familiar human,' Dr Clegg said.
Read more: http://www.dailymail.co.uk/sciencete...#ixzz5GnukYz9m
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