Likeliest cause of the Cretaceous-paleogene mass extinction event. Tyrannosaurus rump - T.rump

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in 1979 The eradication of the smallpox virus was certified, making smallpox the first and to date only human disease driven to extinction.

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When you want to make a cute serious design about extinction but memes are life

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Mammals were nocturnal until dinosaur extinction, then emerged into daylight: https://t.co/JifSqAb5tP via

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Valuable comprehensive review: "Ecological and evolutionary legacy of megafaunal extinctions." et al. https://t.co/1E3pqJLVtP

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GORE WARNING
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Bob on their own can cause a few mass extinctions.

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Snow leopards are now off the endangered list! But they are still classified as vulnerable to extinction. Still, it's the right direction ❤️

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1936, the last known thylacine died in captivity. These iconic images were drawn before their extinction (Gould, 1863)

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Ralph Steadman’s Ark – Species Threatened With Extinction By Edward Lucie-Smith https://t.co/NkLf4dt9ag

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Will Methane, CH4, cause a quick spike in temps, w/ famines, extinctions & economic collapse in our lifetimes? https://t.co/7vQnMacxcR

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More awesome announcements: Get ready to meet , the artist of 's E is for Extinction and Nighthawk, at

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My alphabet so far, can't believe how close to extinction some of these are.

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Character Ability Icons for Lil' Chomper. Mascot extinction is on the menu.

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昨日のトレイラーをちょこっと観てました。前作ロストエイジに引き続きまたも波にさらわれてコケてる司令官。(画像引用元:https://t.co/S4pDaalGCl、Transformers Age of Extinction)

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R for the CRITICALLY ENDANGERED Black Rhinoceros
A herbivore being hunted to extinction for its horn.

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Have you checked out at yet? Make sure you do before these beasts face extinction again! https://t.co/pqTS7RrIEj

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Study sheds new light on how species extinction affects complex ecosystems https://t.co/Rd2hXPfQBM

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