Most species that ever lived on Earth are now extinct, with the planet having experienced at least five mass extinction events. Live Science brings you expert coverage of extinction as researchers uncover fossils and gain new insights into ancient animals — and track the sixth mass extinction event that appears to have begun.
So whether you're after facts about dodos and dinosaurs, curious about extinct animals that could be brought back to life, or want to know what living animals could be gone by 2050, our writers and editors have you covered with the news, features and articles about extinct species.
Discover more about extinct species
—Cretaceous period: Animals, plants and extinction event
—Dinosaurs: Facts about the reptiles that roamed Earth more than 66 million years ago
—What's the first species humans drove to extinction?
—Woolly mammoths: Facts about these extinct, shaggy beasts that once roamed the Arctic
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T. rex may have evolved in North America after all, scientists say
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Pterosaur tracks reveal flying reptiles were comfortable on land, too
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Dinosaurs might still roam Earth if it weren't for the asteroid, study suggests
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Researchers react to T. rex 'leather' announcement
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What was the fastest dinosaur?
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'Hell ant' with scythe-like jaws may be oldest ant fossil ever discovered
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Giant mosasaur discovered in Mississippi
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T. rex may have evolved in North America after all, scientists say
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Pterosaur tracks reveal flying reptiles were comfortable on land, too
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Dinosaurs might still roam Earth if it weren't for the asteroid, study suggests
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Researchers react to T. rex 'leather' announcement
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What was the fastest dinosaur?
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T. rex fossil trade hurting scientific research, study claims
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Trove of dinosaur footprints reveal Jurassic secrets on Isle of Skye where would-be Scottish king Bonnie Prince Charlie escaped
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'Exquisitely preserved' ginormous claws from Mongolia reveal strange evolution in dinosaurs
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Dinosaurs: Facts about the reptiles that roamed Earth more than 66 million years ago
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'Unusual' wooly mammoth tooth oldest ever found in North America
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130,000-year-old baby mammoth goes under the knife
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25,000-year-old mammoth bones reveal culture of ancient humans
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Rare mammoth tusk found on West Texas ranch
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QuizMammoth quiz: Test your knowledge of the ice age beasts
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Pollen allergies drove woolly mammoths to extinction, study claims
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Ancient chromosomes from woolly mammoth discovered in 52,000-year-old freeze-dried skin
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Mystery 'random event' killed off Earth's last woolly mammoths in Siberia, study claims
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Woolly mammoth de-extinction inches closer after elephant stem cell breakthrough
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