保护野生动物英语ppt3.pptx

保护动物刻不容缓贰壹叁 Introduce myselfDirection Present situation Take actionsIntroduce myself壹Introduce myselfThe northern white rhinoceros and the southern white rhinoceros belong to the same subsegment of white rhinoceros, which is genetically different from the white rhinoceros in southern Africa.The northern white rhinoceros was once found in north-western Uganda, southern Chad, south-western Sudan, eastern Central African Republic and north-eastern Democratic Republic of the Congo.It went extinct in May 2016, leaving only specimens.Sudan, the world's last male northern white rhinoceros, died in Kenya on March 19, 2018, at the age of 45. On April 5, 2021, there are only two northern white rhinos left on Earth, all femalesPresent situation贰Present situationSince the death of an elderly northern white rhino at the San Diego Zoo in 2014, there are only five northern white rhinos left in the world. But by mid-2015, the world's last northern white rhinoceros, the Sudan, was 43 years old. The average life expectancy of the wild population of the northern white rhinoceros is 40 years, and the breeding capacity of the elderly Sudan is self-evident. A pair of northern white rhino mothers and daughters in the reserve, as well as two other females raised in the United States and the Czech Republic respectively, are also unable to conceive naturally due to age, physical condition, etc. In November 2015, Nora, a 41-year-old female northern white rhinoceros at San Diego Safari Park, died of illness. As of November 2015, there are only three northern white rhinos left on earth. The world's last male northern white rhinoceros died in Kenya on March 19, 2018, at the age of 45. In April 2021, AfricaNews reported that Najin and Futu were the only two remaining northern white rhinos in the world, both female. Take actions叁Take actionsSince male white rhinos have died, they cannot reproduce by conventional means, so scientists need to find other ways to breed them, rather than asexually. S