Scientists Martin Nyffeler and Klaus Birkhofer published their estimate of the amount of spiders in the world, and the amount of biomass they would consume, in the journal the Science of Nature earlier this month, and the number they arrived at is frankly shocking: The world's spiders consume somewhere between 400 million and 800 million tons of prey in any given year. In other words, spiders could eat all of humanity and still be hungry. Anthony and Jeff discuss spiders eating humans and how scared we should be.

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