Why Do Some Organs Come In Pairs? We all have two of certain organs, like kidneys and lungs, but why not multiple hearts, livers or brains? Facebook Prev Article Next Article Discover Checkout these cool gadgets... Related Posts How healthy are your ears? Scientists Just Transferred Memories… Between Sea Slugs How NASA Mission Designers Invent Futuristic Spacecraft World's Scariest Job? What If You Stopped Drinking Water? New Theory On How Pyramids Were Build