Citat:
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Octopus facts
Their brain is donut shaped with their stomach passing through the centre.
They have excellent senses, especially vision, smell and touch, but they are thought to be deaf.
A large proportion of the nervous system is in the eight sucker covered arms.
Octopus have three hearts and Blue blood.
Males die shortly after breeding; the females tend the eggs until they hatch, after which they also die.
Even if they never breed natural lifespan is only One or maybe Two years depending on the species.
Octopus have no bone structure, as they are invertebrates, despite this they are incredibly strong.
They are amazingly intelligent and require mental stimulation in captivity to prevent them from becoming bored. (Not sure about this one)
There are less than a handful of people in the U.K that keep them.
They are best kept on their own, most tank mates make a tasty meal.
Colour, texture and even body shape can be altered in an instant.
They can squeeze through tiny gaps.
Ink can be ejected to confuse would be predators.
When swimming Octopus use jet propulsion, a bit like a jet ski. "
