Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
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In 2011, a couple bought a box of textbooks for $10. Inside, they found a 25-cent bill signed by the president of the Republic of Texas, Sam Houston, and subsequently sold it for $63,250.
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MIT has developed a camera that captures the speed of light at a trillion frames per second.
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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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The iconic roar made by Godzilla was produced by rubbing a leather glove across the strings of a double bass.
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