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 Light Flashes on The Moon We Still Can’t Figure Out Soylent founder Rob Rhinehart on original recipe side effects Are We Sabotaging Our Search For Life On Mars? Exploring the Arctic’s Global Seed Vault How Hot Can It Get? What Is The Maximum Temperature? The Extreme Physics Pushing Moore’s Law to the Next Level