Tag: Three Hearts
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Octopuses are ocean oddities with a surprising feature—they have three hearts! Two of these hearts pump blood to the gills, where oxygen gets picked up, while the third heart pumps oxygenated blood to the rest of the body. What’s even weirder? The main heart stops beating when an octopus swims, which is one reason they…
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Octopuses are straight out of a sci-fi movie—they’ve got three hearts, but they can also change color to blend into their surroundings! These sea creatures are masters of disguise, using special cells called chromatophores in their skin to shift hues in seconds. If an octopus is hiding on a coral reef, it might turn red…