Spiders mostly eat insects, although some of the larger species have been known to snack on lizards, birds and even small mammals. Given their abundance and the voraciousness of their appetites, two European biologists recently wondered: If you were to tally up all the food eaten by the world’s entire spider population in a single year, how much would it be? Hint: the amount exceeds the total weight of humanity. In other words, spiders could eat all of us and still be hungry.
http://www.vnews.com/Spiders-could-theoretically-eat-every-human-on-Earth-in-one-year-8961488
