See how the blue-ringed octopus warns predators away—and paralyzes prey. | National Geographic
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See how the blue-ringed octopus warns predators away—and paralyzes prey. | National Geographic
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Although only 8-10 inches long, the blue-ringed octopus is one of the most venomous animals on the planet. Their bright blue rings act as a warning to potential predators. Learn more in our encyclopedia: https://bit.ly/2RMovRF | Oceana
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Although only 8-10 inches long, the blue-ringed octopus is one of the most venomous animals on the planet. Their bright blue rings act as a warning to potential predators. Learn more in our encyclopedia: https://bit.ly/2RMovRF | Oceana
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Just a month after mating, a female octopus can lay as many as 100,000 eggs. | National Geographic
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A remarkable octopus society has emerged off Australia’s coast, challenging long-held scientific assumptions. Known as “Octopolis” and “Octlantis,” these dense underwater sites contain more than 20 octopuses living close together in stone “dens,” where they actively arrange rocks into walls and barriers and even use tools. Once believed to be strictly solitary and short-lived hunters, octopuses in these colonies display unexpectedly complex social behavior. Researchers have documented theft and
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Did You Know Octopus Has 3 Hearts… And BLUE Blood? 🐙
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An octopus has three hearts and blue blood — and there’s a fascinating reason why. Instead of iron like humans, octopus blood uses copper to carry oxygen. That’s what makes it blue. But copper is much less efficient at transporting oxygen. So to move enough oxygen through their bodies, octopuses evolved three hearts. Two hearts pump blood to the gills to pick up oxygen, and the third pumps it to the rest of the body. But when an octopus swims, its body movement puts so much strain on circulation
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Tourist holds deadly blue-ringed octopus | Nine News Australia
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