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Octopuses keep surprising us - here are eight examples how
Octopuses have blue blood, three hearts and a doughnut-shaped brain. But these aren't even the most unusual things about them!
Known for their otherworldly look and remarkable intelligence, octopuses continue to reveal astonishing qualities, abilities and behaviour.
http://www.nhm.ac.uk/discover/octopu...mples-how.html
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