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These 23 Animals Have Gone Extinct in the Past 150 Years

Thought to be extinct in the wild, the Spix Macaw currently exists in captivity with their numbers in the dismally low 60 to ...
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The five mass extinction events that shaped life on Earth

5 mass extinctions wiped out 65–96% of species on Earth, with major events including the Ordovician, Devonian, Permian, ...