Most of an Octopus's Neurons Are in Its Arms
Roughly two-thirds of its half-billion neurons sit in the arms, letting them act with a degree of independence.
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An Octopus Named Inky Escaped From a New Zealand Aquarium
In 2016 he slipped out of his tank and went down a drainpipe to the sea.
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Most Octopuses Live Only One to Five Years
Females typically die after their eggs hatch, having guarded them without eating.
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Octopuses Use Tools
Veined octopuses have been filmed carrying coconut shell halves to use as portable shelters.
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Octopuses Can Change Color in a Fraction of a Second
Thousands of color-changing cells called chromatophores let them blend in or flash warnings.