why octopus has blue blood?
Answers
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Explanation:
The octopus is a surprisingly complex creature and, quite possibly, the world's original "blue blood." Its 500 million neurons are distributed throughout its head and body, compared to the 100 billion neurons in our brains [source: Courage]. The octopus's brain power isn't easily apparent at first glance, but it's proven itself capable of planning, reasoning and -- predicting sporting matchups. On the planning front, researchers have discovered that octopuses in Indonesia will gather coconut shell halves in preparation for stormy weather, then take shelter by going inside the two pieces of shell and holding it shut [source: Courage].
If you asked Jean Boal, a behavioral researcher at Millersville University about the inner life of octopuses, she might tell you that they are cognitive, communicative creatures. Boal attempted to feed stale squid to the octopuses in her lab and one cephalopod sent her a clear message: It made eye contact and used one of its arms to shove the squid down a nearby drain, effectively telling her that stale food would be discarded rather than being eaten.
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Answer:
Octopus blood contains the copper-rich protein hemocyanin, which is more efficient than hemoglobin for oxygen transport at very low temperatures and low oxygen concentrations.
Explanation:
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