Facts about Extinction

1. 08

   Passenger pigeons numbered nearly 3 billion across North America in 1800 but faced complete extinction by 1914 due to unregulated commercial hunting and habitat destruction.

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2. 07

   African elephants have declined from approximately 3-5 million individuals in 1930 to roughly 400,000 today, primarily due to poaching and habitat loss driving them toward extinction.

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3. 06

   Neanderthals vanished approximately 40,000 years ago, possibly due to extinction from climate change, resource competition, or interbreeding with Homo sapiens rather than sudden catastrophic events.

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4. 05

   Roughly 68 percent of wild vertebrate populations have collapsed since 1970, representing a catastrophic decline in animal abundance during the modern extinction crisis.

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5. 04

   Holocene extinction rates accelerated dramatically after 1800, with vertebrate species vanishing 114 times faster than the background extinction rate observed in fossil records.

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6. 03

   Approximately 96 percent of marine species disappeared during the Permian-Triassic extinction 252 million years ago, making it Earth's most severe known mass extinction event.

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7. 02

   During the Ordovician-Silurian extinction around 443 million years ago, approximately 85 percent of marine species vanished, primarily due to glaciation and ocean oxygen depletion.

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8. 01

   The Cretaceous-Paleogene extinction 66 million years ago eliminated 76 percent of all species, including non-avian dinosaurs, within just 33,000 years.

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