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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In order to enhance the taste, Japanese macaque wash their food in salt water before they eat. They also make snowballs for fun!
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There's a phone app called RoboRoach that allows you to remotely control a cockroach through a chip that you to manually implant into the unwitting critter.
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Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
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Early American humans hunted car-size armadillos and used their shells for houses.
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