Features the most insightful and informative videos on all areas of the sciences, history, philosophy, and the arts, with an additional focus on the values of Humanism, Freethought and methodological Skepticism.
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Instant Egghead - Are We Facing the Sixth Mass Extinction?
According to the United Nations, we are losing about 200 species per day—a thousand times the normal background rate of extinction. How does this stack up to previous mass extinctions? Scientific American editor Fred Guterl explains.