Octopuses have 3 hearts.
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Around 300 species of Octopuses are recognized.
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A baby octopus is about the size of a flea when it is born.
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Octopus wrestling was a popular sport in the 1960s. A diver would fight an octopus in shallow water and drag it to the surface.
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Octopuses are eaten alive in Korea.
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It's illegal in many countries to perform surgery on an octopus without anesthesia due to their intelligence.
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The Blue-ringed octopus is one of the world's most venomous marine animals: it can kill you in one bite, there is no antivenom.
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Despite their walnut-sized brain, octopuses are highly intelligent, possibly more so than any other order of invertebrates.
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If two octopuses approach each
other and display dark colors
other and display dark colors
the encounter is likely to escalate
to physical confrontation.
to physical confrontation.
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An octopus will eat its own arms if it gets really hungry.
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Instead of mating, female octopuses will sometimes strangle males and eat them.
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Octopuses have a relatively short life expectancy, with some species living for as little as six months.
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The Mimic Octopus can impersonate up to 15 marine species, including Sea Snakes, Stingrays, Lionfishes, and Jellyfishes.
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Octopuses move with a simple elegance, but they have no rhythm, unlike most animals.
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The largest Octopus ever documented
had a mass of 71 kg (156.5 lb).
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Large octopuses have been known to catch and kill some species of sharks.
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Female blanket octopuses can be 40,000 times more massive than the male, it's the largest sex size discrepancy in the animal kingdom.
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Giant Pacific octopus moms have over 50,000 babies, of which, only a few survive, while moms die.
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The octopus' suction cups are equipped with chemoreceptors so it can taste what it is touching.
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A six-limbed octopus was found by an American family on vacation in 2013. It was only the second recorded worldwide. They ate it.
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The Hawaiian creation myth relates that the present cosmos is only the last of a series of failed universes. The octopus is the lone survivor of the previous alien universe.
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Octopus blood is blue.
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Octopus skin can change color 177 times an hour.
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An Octopus with 96 tentacles was caught in Japan in 2008.
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An octopus escaped from its tank at a New Zealand aquarium, crawled across the floor and into a pipe that took it to the ocean.
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Stealthy Seagoers Octopuses are masters at flying under the radar, changing their coloration and texture to match their surroundings in seconds.
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All octopus species are venomous to humans, but only one is deadly.
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