Core Viewpoint - The article discusses the critically endangered species, the Yangtze Giant Softshell Turtle (Rafetus swinhoei), highlighting that only one individual remains in China, making it one of the rarest animals in the world [2][4][7]. Group 1: Species Information - The Yangtze Giant Softshell Turtle is the largest freshwater turtle, with a carapace length of up to 1.5 meters and a weight of 115 kilograms [7]. - Historically, this species was widely distributed in the Yangtze River basin and other regions, but its population has drastically declined, with only two known individuals remaining globally, both of which are male [7][8]. - The last known individual in China, named "Su Su," has been living in the Suzhou Upfangshan Forest Animal World since the 1950s [2][10]. Group 2: Conservation Efforts - Previous attempts to breed "Su Su" with a female turtle named "Xiang Xiang" from Changsha Zoo were unsuccessful, as all offspring died shortly after hatching [10]. - Experts suggest that conservation efforts should include both in-situ and ex-situ strategies, such as establishing protected areas and artificial breeding centers [12]. - Research on the breeding biology of the turtle has led to significant advancements, including the establishment of a breeding base for the species, which could provide insights for the conservation of other endangered species [12].