4 ms·

What whale species went extinct in our lifetimes?

by ed25519FUUU 6y ago

pvaldes 6y ago
Lipotes vexilifer
- refurb 6y ago
  Wikipedia says it's "critically endangered", not extinct. https://en.wikipedia.org/wiki/Baiji https://en.wikipedia.org/wiki/Baiji
  - pvaldes 6y ago
    > Wikipedia says it's "critically endangered", not extinct. Wikipedia is wrong https://iucn-csg.org/baiji/ https://iucn-csg.org/baiji/
  - masklinn 6y ago
    Wikipedia says it's "critically endangered, possibly extinct", there have been no confirmed sightings in nearly 20 years, and a large 6 weeks survey back in 2006 turned out no living individual and declared it functionally extinct even if it wasn't technically extinct yet. Furthermore Yangtze water quality has only gotten worse since then.
  - amelius 6y ago
    Wikipedia says: > In August 2007, a Chinese man reportedly videotaped a large white animal swimming in the Yangtze. Although the animal was tentatively identified as a baiji, the presence of only one or a few animals, particularly of advanced age, is not enough to save a functionally extinct species from true extinction. The last known living baiji was Qiqi (淇淇), which died in 2002. I think the problem is that you can never really know for sure if a species is extinct. But this is pretty sad, and I wouldn't know why anyone would want to go in an argument to prove the GP incorrect.
    - pvaldes 6y ago
      We must take in mind that there are a second species of endangered cetacean still living in Yagtzee River, so videotaping a white animal does not mean necessarily that baiji, or even chinese paddlefish, are alive. Could be CGI or even a plastic bag. https://en.wikipedia.org/wiki/Chinese_paddlefish https://en.wikipedia.org/wiki/Chinese_paddlefish Even today, there are dozens of videos claiming encounters with tasman tigers, that range from CGI to dogs with painted stripes.
      - slavik81 6y ago
        The story of the last tasmanian tiger always makes me sad. > The last captive thylacine, later referred to as "Benjamin", was trapped in the Florentine Valley by Elias Churchill in 1933, and sent to the Hobart Zoo where it lived for three years. The thylacine died on 7 September 1936. It is believed to have died as the result of neglect—locked out of its sheltered sleeping quarters, it was exposed to a rare occurrence of extreme Tasmanian weather: extreme heat during the day and freezing temperatures at night This thylacine features in the last known motion picture footage of a living specimen: 62 seconds of black-and-white footage showing the thylacine in its enclosure in a clip taken in 1933, by naturalist David Fleay. > After the thylacine's death the zoo expected that it would soon find a replacement, and "Benjamin"'s death was not reported on in the media at the time. Although there had been a conservation movement pressing for the thylacine's protection since 1901, driven in part by the increasing difficulty in obtaining specimens for overseas collections, political difficulties prevented any form of protection coming into force until 1936. Official protection of the species by the Tasmanian government was introduced on 10 July 1936, 59 days before the last known specimen died in captivity. > The thylacine held the status of endangered species until the 1980s. International standards at the time stated that an animal could not be declared extinct until 50 years had passed without a confirmed record. Since no definitive proof of the thylacine's existence in the wild had been obtained for more than 50 years, it met that official criterion and was declared extinct by the International Union for Conservation of Nature in 1982 and by the Tasmanian government in 1986. The species was removed from Appendix I of the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) in 2013. https://en.wikipedia.org/wiki/Thylacine#Extinction_in_Tasmania https://en.wikipedia.org/wiki/Thylacine#Extinction_in_Tasman...
ironmagma 6y ago
Vaquita as well

What whale species went extinct in our lifetimes?

pvaldes 6y ago

Lipotes vexilifer

refurb 6y ago
Wikipedia says it's "critically endangered", not extinct. https://en.wikipedia.org/wiki/Baiji https://en.wikipedia.org/wiki/Baiji
- pvaldes 6y ago
  > Wikipedia says it's "critically endangered", not extinct. Wikipedia is wrong https://iucn-csg.org/baiji/ https://iucn-csg.org/baiji/
- masklinn 6y ago
  Wikipedia says it's "critically endangered, possibly extinct", there have been no confirmed sightings in nearly 20 years, and a large 6 weeks survey back in 2006 turned out no living individual and declared it functionally extinct even if it wasn't technically extinct yet. Furthermore Yangtze water quality has only gotten worse since then.
- amelius 6y ago
  Wikipedia says: > In August 2007, a Chinese man reportedly videotaped a large white animal swimming in the Yangtze. Although the animal was tentatively identified as a baiji, the presence of only one or a few animals, particularly of advanced age, is not enough to save a functionally extinct species from true extinction. The last known living baiji was Qiqi (淇淇), which died in 2002. I think the problem is that you can never really know for sure if a species is extinct. But this is pretty sad, and I wouldn't know why anyone would want to go in an argument to prove the GP incorrect.
  - pvaldes 6y ago
    We must take in mind that there are a second species of endangered cetacean still living in Yagtzee River, so videotaping a white animal does not mean necessarily that baiji, or even chinese paddlefish, are alive. Could be CGI or even a plastic bag. https://en.wikipedia.org/wiki/Chinese_paddlefish https://en.wikipedia.org/wiki/Chinese_paddlefish Even today, there are dozens of videos claiming encounters with tasman tigers, that range from CGI to dogs with painted stripes.
    - slavik81 6y ago
      The story of the last tasmanian tiger always makes me sad. > The last captive thylacine, later referred to as "Benjamin", was trapped in the Florentine Valley by Elias Churchill in 1933, and sent to the Hobart Zoo where it lived for three years. The thylacine died on 7 September 1936. It is believed to have died as the result of neglect—locked out of its sheltered sleeping quarters, it was exposed to a rare occurrence of extreme Tasmanian weather: extreme heat during the day and freezing temperatures at night This thylacine features in the last known motion picture footage of a living specimen: 62 seconds of black-and-white footage showing the thylacine in its enclosure in a clip taken in 1933, by naturalist David Fleay. > After the thylacine's death the zoo expected that it would soon find a replacement, and "Benjamin"'s death was not reported on in the media at the time. Although there had been a conservation movement pressing for the thylacine's protection since 1901, driven in part by the increasing difficulty in obtaining specimens for overseas collections, political difficulties prevented any form of protection coming into force until 1936. Official protection of the species by the Tasmanian government was introduced on 10 July 1936, 59 days before the last known specimen died in captivity. > The thylacine held the status of endangered species until the 1980s. International standards at the time stated that an animal could not be declared extinct until 50 years had passed without a confirmed record. Since no definitive proof of the thylacine's existence in the wild had been obtained for more than 50 years, it met that official criterion and was declared extinct by the International Union for Conservation of Nature in 1982 and by the Tasmanian government in 1986. The species was removed from Appendix I of the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) in 2013. https://en.wikipedia.org/wiki/Thylacine#Extinction_in_Tasmania https://en.wikipedia.org/wiki/Thylacine#Extinction_in_Tasman...

ironmagma 6y ago

Vaquita as well