World's spiders devour 400-800m metric tons of insects yearly – experts
by AFP in Paris from Environment | The Guardian on (#2FWA6)
'We hope that these estimates and their significant magnitude raise public awareness and increase the level of appreciation for spiders,' study authors say
The world's spiders eat 400-800m tonnes of insects every year - as much meat and fish as humans consume over the same period, a study said Tuesday.
In the first analysis of its kind, researchers used data from 65 previous studies to estimate that a total of 25m metric tonnes of spiders exist on Earth.
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