Posted by: Diane Yoshimi, Zookeeper, with Linda Uyeda, Zookeeper Recently born Chinese crocodile lizard. Photo by Ryan Hawk /Woodland Park Zoo. Woodland Park Zoo recently had two female Chinese crocodile lizards ( Shinisaurus crocodilurus ) give birth to two litters of 11 babies in total. The crocodile lizard is an unusual reptile that gives birth to young after 9 to12 months of gestation. The newborn babies, weighing approximately 4 to 6 grams, are independent at birth and litter size ranges from 1 to 9. Since WPZ acquired a pair in 1993, there have been 70 crocodile lizard offspring born at the zoo. In December 2010 there were 115 individuals living in 22 North American institutions held in a managed program, meaning a studbook keeper recommends which individuals should be bred in order to maintain genetic diversity in the captive population. Adult Chinese crocodile lizard (left) in a tank next to a baby Shinisaurus (right). Photo by Ryan Hawk /Woodland Park Zoo.