龟类是一种与恐龙同时代起源的古老动物,素有“活化石”之称,它的分布遍及世界各地,全世界现存龟的种类隶属于颈龟亚目和侧颈龟亚目,分为11科、72属,有235种,其中我国现存龟类隶属于5科、18属、31种。龟类有很高的食用、药用、观赏、科研等价值,但近年来由于环境污染、人为滥捕乱杀,栖息地 Turtle is a kind of ancient animal originating from the same period as the dinosaur. It is known as “living fossil”, and its distribution spreads all over the world. The species of the living turtles in the world are subordinated to the turtles, Divided into 11 families, 72 genera, there are 235 species, of which China’s existing turtle belonging to 5 families, 18 genera and 31 species. Turtles have high food, medicinal, ornamental, scientific research value, but in recent years as a result of environmental pollution, indiscriminate killing, habitat