The Smithsonian's Reptile Discovery Center recently hatched it's first Chinese Water Dragon from an unfertilized egg. For the species, it was the first recorded parthenogenetic birth. It is not unusual to see unfertilized eggs from a variety of species, just ask any Iguana or bearded dragon owner! Lauren Augustine, a keeper at the Reptile Discovery Center, decided to hold and incubate all eggs from virgin females. What happened next is quite honestly history, and documented at that!
After two weeks of incubation, Reptile Discovery Center keepers candled the eggs; that is, they held them up to a light. The candling process revealed veins—a tell-tale that the eggs were fertile and the embryos were developing. After looking through our Asian water dragon’s records, I immediately suspected parthenogenesis. Before reaching sexual maturity, she was housed either by herself or with other females.
They have actually collected more than 1 fertile egg, however only 1 has hatched. This year the baby is of breeding age, so the team will be monitoring her eggs as well as mom's. They are still looking at the embryos that did not survive to hatching to determine the genetics as well. For more on this fascinating story, visit the Smithsonian Blog
here.
lead photo courtesy of Smithsonian Blog