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Did you know spiders eat 800 million tonnes of prey every year?
Updated : 8 years, 6 months ago IST
Washington D.C. [U.S.A.], Mar. 15 (ANI): A study shows that global spider population - with a weight of around 25 million tonnes - wipes out an estimated 400-800 million tonnes of prey every year, thus making an essential contribution to maintain the ecological balance of nature.
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