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The team discovered that octopuses learn when neural activity sparks long-term changes in their synapses

The team discovered that octopuses learn when neural activity sparks long-term changes in their synapses

Close Scientists in Israel, in a serendipitous discovery while studying the causes of skin colour changes in the cephalopod due to light, have made a shocking discovery. They found that octopus arms can sense a beam of light and evade it even when its eyes cannot see the light.  In a series of tests and investigation, the scientists discovered that shining a light on an octopus's arm caused the animal to repudiate it, even when it was slumbering, and while the source of the light was present on the other side of a small opening into which its arms could fit but the light was unseen to its ey...

Octopuses have a secret sense to keep 8 arms out of trouble We’re sorry, this service is currently unavailable. Please try again later. Dismiss By Richard Sima Save Normal text size Advertisement Though it is well-known for its many arms, the octopus does not seem to know where those eight appendages are most of the time. “In the octopus, you have no bones and no joints, and every point in its arm can go to every direction that you can think about,” said Nir Nesher, a senior lecturer in marine sciences at the Ruppin Academic Centre in Israel. “So even one arm, it’s so...

Even when an octopus can’t see light with its eyes, its arms seem to know it is there.