There is an apparent good-news story, with confirmation that an 86kg female Swinhoe's softshell turtle (Rafetus swinhoei) has been found in Vietnam's Dong Mo lake (https://www.theguardian.com/environment/2021/jan/01/hopes-for-most-endangered-turtle-after-discovery-of-female-in-vietnam-lake). There may be another turtle (a male?) in the lake and possibly turtles in a nearby lake. The only male known to certainly exist, however, is a single animal in Suzhou zoo in China (shades of 'Lonesome George' the Galapagos Giant tortoise). These giant soft shell turtles were driven to the edge of extinction, by hunting for their eggs and meat (a turtle was a feast for a whole village on the Yangtze river) as well as destruction of their habitat. This turtle species was only given protection in 2013 but continued to decline. Although scientists are determined to give the turtles the chance to breed again, I don't think the prognosis for their survival is good. The last previously known female died in 2019, when she failed to recover from an anaesthetic as she was being artificially inseminated in Suzhou zoo. And, even if she (and/or others) does/do breed, there will be precious little genetic diversity in the species.