Mahatma Gandhi used to travel with his goat so that he could have fresh milk.
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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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Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
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Using a remote-controlled camera, biologists caught dolphins getting high by sucking on puffer fish. They were even caught passing the puffer fish around.
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A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
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The reindeer is the only mammal that can see UV light.
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