National Zoo News http://nationalzoo.si.edu News from the National Zoo Celebrate Bao Baos birthday and panda conservation https://twitter.com/hashtag/BaoBaoBday?src=hash New Smithsonian’s National Zoo 125th anniversary limited edition SmarTrip cards http://nationalzoo.si.edu/Visit/metro.cfm#SmarTrip SCBI scientists track wild black-crowned night herons that summer at the Zoo http://youtu.be/ufxbHd2xS34 Smithsonian & SVF Biodiversity preservation project highlights heritage rare-breed conservation http://nationalzoo.si.edu/publications/pressmaterials/pressreleases/press-release.cfm?id=2655 Four litters of red panda cubs born at SCBI http://nationalzoo.si.edu/Animals/AsiaTrail/RedPanda/default.cfm#update Sloth bear grows up http://nationalzoo.si.edu/Animals/AsiaTrail/SlothBears/sloth-bear-cub.cfm Six lion cubs on exhibit http://nationalzoo.si.edu/Animals/GreatCats/Lion/