Prevent extinction

1902 – The last known specimens of the Rocky Mountain locust are collected near Brandon, Manitoba.[45]
1905 – The last known Honshū wolf of Japan dies in Nara Prefecture.[46]
1907 – The huia, a native bird of New Zealand, is last seen. Habitat loss, hunting, and disease all played a role in its extinction.[47]
1909 - The last known tarpan, a Polish wild horse, died in captivity.[48]

1910sEdit

1911 – The last Newfoundland wolf was shot.[44]
1914 – The last passenger pigeon, Martha, died in captivity at the Cincinnati Zoo. Excessive hunting contributed to its extinction; it was formerly one of the world's most abundant birds.[49]
1918 – The last Carolina parakeet died in captivity at the Cincinnati Zoo. The bird, formerly inhabiting the southeastern United States, was driven to extinction by exploitation, deforestation, and competition with introduced bees.[50]

1920sEdit

1924 – The California grizzly bear is sighted for the last time.[51]
1925 – The Kenai Peninsula wolf was driven to extinction.[44]
1929 – Acalypha wilderi was last seen in the wild. This species may be synonymous with A. raivavensis and A. tubuaiensis, which would mean it is in fact not extinct globally.[52]

1930sEdit

1930 - Darwin's rice rat was last recorded in the Galápagos Islands. Its extinction was probably caused by the introduction of black rats.[53]
1932 - "Booming Ben", the last known heath hen was seen on Martha's Vineyard, Massachusetts.[54][55]
1933 - The cry pansy from Europe becomes extinct due to habitat loss and overcollection in the only place where it grew, France.[56]
1934 - The indefatigable Galapagos mouse was last recorded. Its extinction was probably caused by the introduction of black rats.[57]
1935 - The desert rat-kangaroo was last recorded.[3]
1935 - The Mogollon mountain wolf and the Southern Rocky Mountains wolfwere hunted to extinction.[44]
1936 – The last thylacine died in captivity. Hunting, habitat loss, disease, and competition from domestic dogs all may have contributed to the extinction of the species.[58]
c. 1937 – The Bali tiger was last definitively seen around this time, but likely persisted into the 1940s or possibly even the early 1950s.[59]
1939 – The toolache wallaby was last recorded.[3]
1940sEdit
- 1940 – The Cascade mountain wolf was hunted to extinction.[44]
- 1942 – The Texas wolf was purposefully driven to extinction.[44]
- 1942 – The last confirmed sighting of the Barbary lion, although unconfirmed reports surfaced until 1970.[60]
1950sEdit
- 1952 - Last reliable report of the Caribbean monk seal.[61]
- 1952 - The Bernard's wolf was hunted to extinction.[44]
- 1956 - The crescent nail-tail wallabyand imperial woodpecker were last recorded.[3]
- 1957 – The Scioto madtom, a species of fish, is last collected.[62]
1960sEdit
- c. 1960 - The Mexican grizzly bear was exterminated around this time.[63]
- 1962 - The red-bellied gracile opossumwas last recorded in Argentina.[3]
- 1964 - The Hawaii chaff flower of the Hawaiian islands becomes extinct because of habitat loss.[64]
- 1965 - Last sighting of the turgid-blossom pearly mussel, an American mussel.[65]
- 1966 – The last Arabian ostrich died around this time.[66]
1970sEdit
- c. 1970 - The Caspian tiger becomes extinct primarily due to habitat loss, hunting, and loss of prey.[67]
- 1972 – The endemic to Jamaica Mason River myrtle becomes extinct.[68]
- 1974 - The last known Japanese sea lionis captured off the coast of Rebun Island, Hokkaido.[69]
- c. 1976 – Last sightings of the Javan tiger.[70]
1980sEdit
- 1981 – The Puhielelu hibiscadelphusbecomes extinct.[71]
- 1981 - Last sighting of the green-blossom pearly mussel, an American mussel.[72]
- 1981 – The Southern gastric-brooding frog (Rheobatrachus silus) became extinct probably due to habitat destruction and disease.[73]
- 1983 - Last unconfirmed spotting of the kouprey (Bos sauveli),[74] last absolute confirmed spotting was in 1969/70.[75]Declared as "most likely to be extinct" by the IUCN.[75]
- 1983–84 – The 24-rayed sunstar(Heliaster solaris), the Galapagos black-spotted damselfish and the Galapagos stringweed likely become extinct due to climate change.[76]
- 1985 – The Northern gastric-brooding frog (Rheobatrachus vitellinus) became extinct probably due to habitat destruction and disease.[77]
- 1987 - The last Kauaʻi ʻōʻō (Moho braccatus), a male, is recorded singing a mating call. The species was never heard from again and was declared extinct.[78]
- 1989 - The golden toad of Costa Rica becomes extinct, perhaps because of climate change.[79]
1990sEdit
- 1990 - The dusky seaside sparrow was officially declared extinct in December 1990. The last definite known individual died on 17 June 1987.[80]
- 1994 – Saint Croix racer, a snake native to the Virgin Islands, declared extinct.[81]
- 1994 - Levuana moth from Hawaii goes extinct.[82]
- 1997 - The Hainan ormosia (a species of legume) which was native to China is no longer seen.[83]
  - 2000 - "Celia", the last Pyrenean ibex, was found dead in 2000. However, in 2003, a female was cloned back into existence, but died shortly after birth due to defects in the lungs.[84][85]
  - 2003 – The last individual from the Saint Helena olive, which was grown in cultivation, dies off. The last plant in the wild had died in 1994.[86]
  - 2006 - A technologically sophisticated survey of the Yangtze River failed to find specimens of the baiji dolphin, prompting scientists to declare it functionally extinct.[87]
- 2010sEdit
  - 2011 – The Eastern cougar was declared extinct. Last known individual was trapped and killed in 1938.[88][89]
  - 2011 – The western black rhinoceroswas declared extinct.[90]
  - 2012 – The Japanese river otter (Lutra lutra whiteneyi) declared extinct by the country's Ministry of the Environment, after not being seen for more than 30 years.[91]
  - 2012 – "Lonesome George", the last known specimen of the Pinta Island tortoise, died on 24 June 2012.[92]
  - 2013 – The Cape Verde giant skink was declared extinct.[93]
  - 2013 - The Formosan clouded leopard, previously endemic to the island of Taiwan, is officially declared extinct.[94]
  - 2014 – The Bermuda saw-whet owl was declared extinct after being described from fossils in 2012.[95]
  - 2017 - The Christmas Island forest skinkwas declared extinct, three years after the last known specimen died.[96]
  - 2019 - The Bramble Cay melomys was declared extinct.

Dominic · Jul 22, 2020

This is a very extensive list, but perhaps with the Lord Howe Island ones, if I remember right most of those went extinct after a shipwreck which let rats onto the island? This could be avoided, or at least delayed long enough for a more active conservation culture to emerge.

Analytical Engine · Jul 22, 2020

Many of these will require strict control over deforestation and invasive species.

People need to become aware of the necessity of conservation, and to care enough to do it.

Riain · Jul 22, 2020

I'd suggest most of the post 50s extinctions were as a result of population pressure, so I'd suggest no 'Green Revolution' that allowed such a massive population boost from the 60s. Without the Green Revolution the boost in population from 3 billion in 1960 to 7.5 billion now might have been drastically slowed, we might only have 4 or 5 billion people now which reduces the pressure on the natural environment.

Antonio Ferrari · Jul 23, 2020

Status update:

You don’t have to necessarily save all these species. Just find way to save some of them

Prevent extinction

Antonio Ferrari

Dominic

Analytical Engine

Riain

Antonio Ferrari