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    • Why Chicken Egg Colors Vary From Bird to Bird

      Why Chicken Egg Colors Vary From Bird to Bird

      HowStuffWorks· 7 days ago

      This process protects against salmonella, but also removes a waxy shell coating that naturally defends eggs against microorganisms, thereby necessitating...

    • How Do Chameleons Change Color? And Why?

      How Do Chameleons Change Color? And Why?

      HowStuffWorks· 20 hours ago

      When the animal is relaxed, the cells stay close together and reflect short wavelengths, like blue. A rush of excitement pushes those cells farther...