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www.vox.com "Extinction breeds extinctions": How losing one species can wipe out many more

The Ethiopian wolf, Canis simensis, is an endangered species. Fewer than 1,000 individuals are left in the wild. | Roger de la Harpe/Universal Images Group via Getty

Humans are causing a mass extinction. And humans can stop it. Earth is now in the middle of a mass extinction, the sixth one in the planet’s history, according to scientists.
And now a new study reports that species are going extinct…