龟
全世界大约莫有300种龟，多人晓得个大约有24种。
龟个网站[编辑]
- UC Berkeley Museum of Paleontology
- Chelonian studbook Collection and display of the weights/sizes of captive turtles
- John M. Legler & Arthur Georges, Biogeography and Phylogeny of the Chelonia (taxonomy, maps)
- The word 'turtle' in many different languages
