Gold exists, just as it really is, just as the physicist knows it to be, and that has nothing to do with us. Michal Cizek/AFP/Getty Images hide caption

itoggle caption Michal Cizek/AFP/Getty Images

Kind of cute. But pretty stupid. A scale model of a baby sauropod in its egg. Tim Boyle/Getty Images hide caption

itoggle caption Tim Boyle/Getty Images

Many of life's building blocks can be found in the objects bombarding Earth from outer space. Does that mean that life, too, developed elsewhere before arriving here? Mary P. Hrybyk-Keith/NASA hide caption

itoggle caption Mary P. Hrybyk-Keith/NASA

For centuries, Russians believed putting a brown frog in their milk would keep it fresh. Now scientists are finding chemicals in the frog's slimy goo that inhibit the growth of bacteria and fungi. Stefan Arendt/Corbis hide caption

itoggle caption Stefan Arendt/Corbis

Moss and a cup fungus growing amid the decomposing leaves of Shakerag Hollow in Sewanee, Tennessee. Courtesy of David Haskell hide caption

itoggle caption Courtesy of David Haskell