The Lion's Mane Jellyfish is the largest jellyfish in the world. They have been swimming in arctic waters since before the dinosaurs (over 650 million years ago).
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Crows living in some urban areas drop nuts into traffic to let the passing cars crush them, then they wait for the red lights to stop the traffic so they can grab and eat it.
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Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
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Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
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It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
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A dairy cow can produce more milk when listening to music.
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