Octopus

Octopuses are shape-shifting, triple-hearted, literally blue-blooded ocean creatures that have baffled scientists for decades.

They have a brain in each of their arms (because, by the way, they’re not technically tentacles) – arms which can change colour pretty much at will.

And now, scientists have found out that octopuses seem to have favourite arms for different tasks, too.

A paper published in Scientific Reports found that though all octopus arms seemed equally useful, their owners chose some to do certain jobs over others anyway.

Why do........

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