From the beginning of 2020 to the present, all human beings have not been smooth, but for the small animals in nature, it is a relief. But there are still many poor animals that have not enjoyed the quiet nature of all human confinement, declared extinct in 19 years, and probably many of them you have never seen or even heard of, and today I still want to take you to see it
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The fate of the white-named residents of the Yangtze River is very tragic, and in the early years, the boiling white and dolphin declared functional extinction, and at the end of 18 years, the white-tipped dolphin reappeared and became extremely dangerous again, but the more ancient white-character aboriginal people, the world's largest freshwater fish, the white sturgeon, declared complete extinction.
As one of the first inhabitants on Earth, the White Sturgeon has survived on Earth for 150 million years, surviving the extinction of the dinosaurs but not human development. Since the completion of Gezhou Dam, fishermen have begun to increase the intensity of fishing. In order to seek higher interests, some fishermen also use "ecstasy arrays", electric fish, fried fish and other means to catch large-scale fish, even juvenile fish are not spared, accompanied by various industrial sewage, water quality has dropped sharply.
However, everyone has long been mentally prepared, and the last video data of the white sturgeon was on January 23, 2003. After rescuing a white sturgeon, experts released it back into the Yangtze River and tried to track it down. I didn't think about it, I hit the reef on the shoal and lost the tracking signal. Since then, there has been no trace of white sturgeon in the Yangtze River Basin, and it is only a matter of time before extinction is declared.
Watching the giant panda population on the ground begin to prosper, and then think of the "giant panda in the water" white sturgeon, which is lamentable.
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Or from China, from the Yangtze River, but also the world's largest. Spotted turtle (Rafetus swinhoei; Yangtze giant softshell turtle) is a freshwater turtle native to the Yangtze River basin and the Red River Basin, is one of the world's largest turtles, with a history of 270 million years, because Chinese medicine believes that it has a strange curative effect and was hunted in large numbers, and has not been found in the wild since 1972.
In April 2019, the last known female turtle in the world died at Suzhou Zoo due to attempts at artificial insemination, indicating that the turtle can no longer have new offspring, and scientists then freeze ovarian tissue with liquid nitrogen, hoping that in the future it is possible to continue the offspring through technological breakthroughs. There are currently only 3 male spotted turtles left worldwide.
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The golden-capped Hawaiian tree snail (Achatinella apexfulva) is found only in the forests of Hawaii on the island of Oahu in the United States (USA), and the earliest record dates back to the 1780s, when the number was very large. Due to the beautiful shell and characteristics, snails became the first choice for making necklaces, and over-catching caused the population to decline sharply and gradually disappear into nature.
In 1997, the last 10 tree snails on Earth were sent to the University of Hawaii laboratory for captivity. Although experts have successfully bred newborn snails, they have all died one after another. The only remaining snail, named George, also passed away in January 2019 at the age of 14, confirming that the species had completely disappeared.
Notably, other terrestrial snails on the island of Hawaii are also under threat, with the main danger being climate change and the large-scale invasion of alien species.
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In 1887, the British zoologist Brunger discovered a slender New Zealand lizard, which he named the spotted stone dragon lizard, which scientists described as a "complete mystery", most notably after the first discovery and recording, there was no record of it for 130 years. Experts declared this species extinct in 2019, hoping to use this warning to awaken the attention of others to other stone dragons.
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The Alagoas foliage-gleaner is endemic to Brazil, and the last human sighting was in 2011, and the main reason for their disappearance is the development of tropical rainforests – large areas of football-like forests are constantly being cut down, and it is extremely sad to grow other cash crops or provide paper and furniture markets.
In 2019, the IUCN officially classified the species as extinct.
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In 1845, British sailors first spotted the little guy while resupplying. If it weren't for its red hair and bulging little nose, the crew would have noticed the difference. It is quite possible that the first discovered naked-tailed coral rat will be disposed of by sailors as ordinary rats.
The naked-tailed coral rat is endemic to Australia, distributed in the vegetation reefs at the northern end of the Great Barrier Reef, and was last discovered by researchers in 2009.
In 2019, the Australian government officially declared this species extinct, and it is the only mammal endemic to coral reefs, and the first mammal to become extinct due to climate change.
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First discovered in Hawaii in 1973, the Po'ouli is a native species that lives only in Hawaii. According to the U.S. Fish and Wildlife Service, the number was only 150 in 1981, and then fell sharply by 90% in the next 10 years.
The main reason for the disappearance of the Makoshima honeyfinch is the loss of habitat after the rise of Hawaiian tourism, coupled with the invasion of wild boar predation, cat and mouse hunting, and the impact of disease, and attempts at conservation and artificial breeding have failed. According to the latest survey, the last sight of a honeydew was in 2004. Scientists declared extinction in 2019.
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Piliocolobus waldronae was discovered by Mr. Lowe in December 1933, and for some reason he named the monkey after Miss Watton, who was investigating with him, so he also called miss Watton red colobus monkey.
Red colobus monkeys inhabit subtropical and tropical dry forests and swamps. Inhabiting the upper and middle layers of the forest, rarely reaching the ground, the living environment of the Waldren red colobus monkey is deteriorating with the continuous destruction of the forest by humans. Statistics say the last time people saw the monkeys went back 40 years. Although some scientists still believe that there are adult male monkeys who have left still live in the depths of a certain forest. But organizations still announced in 2019 that the Waldron red colobus monkey was officially extinct.