You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
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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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Sony researchers have developed a refrigerator that only opens when you smile.
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Elephants are terrified of Bees and actually have a special, distinct vocalization for “Run away the Bees are angry”
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Some farmers in Kenya are using elephants' natural fear of bees and building "beehive fences" that keep wild elephants from trampling the crops. It keeps the farms safe, and prevents farmers from having to kill elephants to defend their livelihood!
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