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14 Facts About Animals That Have Gone Extinct in the Last 100 Years

Since 1900, nearly 500 species of animal have gone extinct, according to a 2015 study. The good news is, scientists are trying to bring some back.

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WADE PAYNE/AP/Shutterstock

Passenger pigeon

Once one of the most populous birds in North America, passenger pigeons could fly as fast as 60 mph, according to the Audubon Society. Their numbers were wiped out after Europeans arrived and hunted them for cheap meat. In 1914, the last known surviving member of the species, Martha, died at the Cincinnati Zoo.

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Golden colored tropical treefrog on green exotic foliage called a Mahogany Treefrog, Hyla loquax
Matt Jeppson/Shutterstock

Golden toad

Last spotted in the forest in Monteverde, Costa Rica, in 1989, the disappearance of the golden toad has been attributed to global warming, Science magazine reports. Other scientists have since suggested that the golden toad could have been wiped out by the El Nino weather pattern, which created extremely dry conditions around the time the golden toad vanished.

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VARIOUS Extinct Carolina parakeets, Conuropsis carolinensis carolinesis, in museum, Philadelphia
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Carolina parakeet

The vibrant feathers of the only species of parrot native to the eastern United States may have helped contribute to its demise. The Carolina Parakeet’s green, yellow, and red feathers were prized additions to women’s hats. The birds also had a dangerous tendency to flock to other birds once they had been killed, according to the Audubon Society. The last captive Carolina parakeet, Incas, died at the Cincinnati Zoo in 1918, within a year of his mate, Lady Jane.

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Greater Prairie Chicken "booming" (mating display) on lek / booming grounds, Fort Pierre National Grassland, South Dakota
Tom Reichner/Shutterstock

Heath hen

Once common on the east coast of America, the heath hen could only be found on Martha’s Vineyard by the late nineteenth century. Wildfires, hunting, and habitat changes caused the heath hen’s remaining numbers to dwindle, the Vineyard Gazette reports. In 1933, the species was declared extinct after the disappearance of the last known heath hen, Booming Ben. Conservationists announced in 2016 that they are working to restore the population, however.

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Tasmanian Tiger Or Thylacine

Tasmanian tiger

With stripes like a zebra and a shape like a dog, the Tasmanian Tiger was also known in the twentieth century as a “vampire dog,” rumored to drink blood, based on little evidence. The species survived in Tasmania until dogs, hunting, and disease wiped out its numbers, according to the History Channel. The last known Tasmanian tiger died in Tasmania’s Hobart Zoo in 1936. However, the tiger ranks high for supposed post-extinction sightings. Check out these 14 prehistoric species you’ll be glad are extinct.

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Big Cat in the first snow

Caspian tiger

More than 10,000 years ago, these fierce tigers migrated from eastern China to the Caspian Sea, paving the way for the trade route that became known as Silk Road. During the nineteenth century, the Russian Army was ordered to exterminate the tigers as part of an agricultural project, according to National Geographic. The last Caspian tiger was believed to have been killed in Turkey in 1970. Scientists are now working to bring the Caspian tigers back, using specimens from museums in Russia, Kazakhstan, and Azerbaijan.

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Spanish Wild Goat - Iberian Ibex
Michele Aldeghi/Shutterstock

Pyrenean ibex

These wild goats were once commonly found in the Pyrenees Mountains that stretch between Spain and France and in the mountains of northern Asia and Africa. Conservationists aren’t exactly sure why their numbers dwindled, but the species was declared extinct in 2000. And scientists have been working to bring the Pyrenean ibex back. In 2009, they attempted to use frozen tissue to create a clone, but the female died seven minutes after birth. Here are 11 wild animal species you didn’t know were endangered.

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A Monk seal lays on a sandy beach, in the Hawaiian islands on a hot summer day
C mcarter/Shutterstock

Caribbean monk seal

The only seal species native to the Caribbean, the Caribbean monk seal is the first seal species to become extinct due to human activity. According to the U.S. Fish and Wildlife Service, European colonists hunted the seals for their blubber to provide fuel and also for food. Early scientists who captured the seals for study also contributed to the decline in their numbers. Their last known colony was spotted on an isolated reef off a small uninhabited Caribbean island, and the Caribbean monk seal was declared extinct in 2008.

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Black rhino bull taking a bath at a waterhole in the western part of Etosha National Park in Namibia
Henk Bogaard/Shutterstock

Western black rhinoceros

An estimated one million rhinoceroses from four different species may have roamed the African savanna at the turn of the twentienth century, according to Scientific American. Within 100 years, the western black rhinoceros had gone extinct. The culprits? The clearing of their natural habitat for farming, sport hunting, and Chinese leader Chairman Mao’s support for traditional Chinese medicine in the 1950s, which included powdered rhino horn as a remedy. Last seen in Cameroon, the western black rhino was declared extinct in 2011. Look out for these 15 innocent-looking animals that can be dangerous.

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VARIOUS Pinta Island Tortoise (Geochelone nigra abingdoni), 'Lonesome George', last specimen, Charles Darwin Reserve Station, Santa Cruz Island, Galapagos-Islands, Pacific
Krystyna Szulecka/FLPA/ imageBROKER/Shutterstock

Pinta Island tortoise

The Pinta Island tortoise partially inspired Charles Darwin’s theory of evolution when he visited the Galapagos Islands in 1835. Since then, the population has largely been wiped out by goats that humans introduced to the islands, according to New Scientist. In 2015, the last purebred Pinta Island tortoise, known as Lonesome George, died in captivity at the age of 100. But scientists have been working to conserve the remaining tortoise populations and to use George’s genome to find other tortoises with similar genes.

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O'ahu tree snail. O?ahu tree snails, form a large genus of colorful, tropical, tree-living, air-breathing, land snails, arboreal pulmonate gastropod mollusks in the family Achatinellidae

O’ahu tree snail

Dealing yet another terrible blow to Hawai’i and its once-abundant fauna, George, the 14-year-old O’ahu tree snail and the last of his kind, died on New Year’s Day of 2019. Although 752 kinds of snails have been identified throughout the islands, their numbers have been depleted by as much as 90 percent. “Our world is slowly becoming less colorful, less vibrant with each loss, and only a few people are in a position to appreciate it,” a biologist told Mashable.com about George’s death. Luckily, there are some species of snails left to marvel at.

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Madeiran large white (Pieris brassicae)
Bildagentur Zoonar GmbH/Shutterstock

Madeiran large white

This small, delicate butterfly has the weighty and not-at-all-charming distinction of being declared the first insect in Europe driven to extinction by mankind. Suffering from habitat loss due to development, as well as exposure to agricultural chemicals, it was declared extinct in 2007, after scientists were unable to find it in the wild for a period of 15 years.

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Barbary lion at Liberec Zoo, Czech Republic - 30 May 2018
Slavek Ruta/Shutterstock

Barbary lion

“History books tell us that the last wild Barbary lion (Panthera leo) was probably killed in 1922 by a French colonial hunter in Morocco. But in repeating the tale of this well-documented death, the history books may have left a chapter or two out of the story,” reports Scientific American. Namely, that members of the species hid out elsewhere (Morocco, Algeria), and possibly went extinct in the wild in those places several decades later. Speculation persists as to whether they exist, still, in zoos.

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Schomburgk's deer, Rucervus schomburgki, Cervus schomburgki on the straw.

Schomburgk’s deer

We have hunters to thank for the disappearance of this large, soft-eyed ungulate—helped along by the weather. According to ThoughtCo, “[D]uring monsoon season, the small herds [of deer] had no choice but to gather on high promontories, where they were easily picked off.” The last of these deer were seen in the wild in 1938. Here are 14 more beautiful animals that could disappear in your lifetime.

Jen McCaffery
Jen McCaffery covers money, tech, products, health and safety for Reader's Digest and other publications and websites. When she’s not writing or editing, she’s growing veggies or trying to figure out the way home from assorted trails.
Lela Nargi
Lela Nargi is a veteran journalist covering science, sustainability, climate, and agriculture for Readers Digest, Washington Post, Sierra, NPR, The Counter, JSTOR Daily, and many other outlets. She also writes about science for kids. You can follow her on Twitter @LelaNargi.