How long do octopuses live?
One to three years. Octopuses breed once and die, and in females a gland behind the eyes runs a shutdown sequence that keeps her guarding her eggs.
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How do octopuses hunt and kill their prey?
Octopuses hunt by ambush because jetting exhausts them in seconds. The grip captures, venom through the beak kills, and the meal is eaten at home in the den.
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How do octopuses change colour?
Three skin layers run at once: pigment sacs that flash colour, cells that bend light into blues, and muscular bumps that change texture. All in under 300ms.
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How intelligent are octopuses?
Octopuses open jars, carry tools for later use, play, and hold stable personalities, with no parents, no social group and a brain spread through eight arms.
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Why does an octopus have three hearts and blue blood?
Octopus blood carries oxygen on copper, which turns blue and outperforms iron in cold water. Three hearts move it: one per gill, plus one for the body.
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What makes an octopus so different from other animals?
No skeleton, half its neurons in its arms, skin it can repaint in a fraction of a second, and a lineage that split from ours 750 million years...
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