About 63 years ago, i.e. in the year 1957, a giant octopus was found in southern Canada, which weighed about 270 kg and its arms were five meters long.
Octopus has three hearts, out of which two work to supply blood and the third works to deliver that blood to all the parts of the body.
You will be surprised to know that the color of their blood is blue. Actually, the amount of copper in their blood is high, due to which the color of their blood becomes blue.
Some species of octopus are very poisonous. So poisonous that if they bite a person once, they can also die.
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