The Strangest Natural and Man-Made Items that Actually Exist

See Through Butterflies

When evolution doesn't grant you camouflage, sometimes you have to make it yourself. This clear winged butterfly can blend in with the environments around it because it's built to look like a mildly abnormal flower. 

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The More You Know

  • The first TV commercial didn't air until the 1940s.
  • The word "muscle" comes from a Latin term meaning "little mouse."
  • The longest tennis rally lasted over 12 hours.
  • A cow-bison hybrid is called a "beefalo."
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