Do any spi­ders hunt in packs?

BBC Wildlife Magazine - - Our Wild World -

A Spi­ders are gen­er­ally pretty soli­tary crea­tures, prone to can­ni­bal­ism. But there are a hand­ful of species, mostly from the trop­ics, that build large com­mu­nal webs and co­op­er­ate to im­mo­bilise prey that are too big to han­dle alone.

Trap­ping prey in a web, though, is a rather pas­sive form of pack-hunt­ing. Four Aus­tralian species of crab spi­der are more ac­tive in their tech­nique, work­ing to­gether like prides of lit­tle lions. They build leaf nests in trees and hide in ‘port­holes’, ready to rush out en masse to am­bush pass­ing in­sects. Groups cap­ture more and larger prey, and im­mo­bilise them faster com­pared to sin­gle spi­ders.

S Black­man

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