With over 72% of the Earth’s surface covered by salt water, the Earth’s oceans are home to 230,000 known species. And that’s with only 5% of the Earth’s oceans considered explored! In celebration of the vast unknown of the ocean, we present our favorite ocean animal facts:
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Jellyfish have been around for more than 650 million years, which means that they outdate both dinosaurs and sharks.
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An Electric Eel is known to produce electricity sufficient enough to light up to 10 electric bulbs.
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Dolphins sleep with only half of their brain and with one eye open so they can watch for predators and other threats.
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An Octopus has three hearts and the color of its blood is blue.
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At 188 decibels, the calls of blue whales is the loudest sound made by any animal on the planet.
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Oysters can change from one gender to another and back again depending on which is best for mating.
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Seahorses are the only animals in which the male, not the female, gives birth and care for their young.
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A shrimp's heart is in their head.
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Sea sponges have no head, mouth, eyes, feelers, bones, heart, lungs, or brain, yet they are alive.
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Turtles live on every continent except Antarctica.