A fact file on the highly intelligent eight-legged mollusc
What colour is the octopus's blood?
The octopus is blue blooded. It has copper-laden protein haemocyanin instead of oron-laden haemoglobin.
How many hearts does the octopus have?
The octopus has three hearts and each performs a different role.
Does the octopus have a beak?
Yes, the octopus has a parrot-like hard beak on the underside near where the arms converge.
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