The last thylacine , named benjamin , died at hobart zoo in tasmania on september 7 1931 .
最后一只袋狼叫本杰明，1931年9月7日死于塔斯马尼亚的霍巴特动物园。
A genetic study of the extinct tasmanian tiger , or thylacine , carried out on preserved museum specimens suggest that the species may have been too inbred to survive , say researchers .
