How Octopuses Taste With Their Arms

Over 2,000 tiny suckers cover the arms of a common octopus, each packed with specialized cells. At the bottom of the Mediterranean Sea, Octopus vulgaris explores rocks using these suckers. It’s not just touch-every contact means these arms are actually tasting the world, thanks to chemoreceptors that identify chemicals like sugar or toxins. An octopus can tell if a crab is edible just by running an arm across its shell. All eight arms working together make this sea creature an underwater taste-testing machine. That’s how Octopus vulgaris tastes its surroundings, literally feeling flavor with every move. Bet you didn’t know… or did you?