Summer has arrived and there are lots of changes, new residents and new opportunities at the Smithsonian’s National Zoo: 1. Three Dozen NEW Reptile Residents: The Zoo’s Reptile Discovery Center is brimming with new additions this summer, including false water cobras, leaf-tailed geckos, green tree monitors, fantastic geckos, Hamilton’s turtles, Caledonian giant geckos, spider tortoises, Timor pythons, spiny-headed tree frogs and more. The new residents give visitors the opportunity to see…