Krak koji kuša
Octopus suckers contain special receptors that let an arm taste whatever it touches, even in total darkness.
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Keep it on your phone →Ispruži ruku i dodirni nešto, i osjetit ćeš oblik i teksturu. Hobotnica koja ispruži krak radi nešto čudnije: ono što dodirne istog trena i kuša, kroz stotine sisaljki na svakom kraku.
Znanstvenici su nedavno otkrili da sisaljke hobotnice sadrže posebne receptore kakvi ne postoje ni kod jedne druge životinje, građene da osjete tvari koje se ne otapaju u vodi. To hobotnici omogućuje da krak zavuče u mračnu pukotinu u stijeni i odmah zna što se ondje krije, hrana, opasnost ili baš ništa, a da to ne mora vidjeti ni izvući van.
To je posve drukčiji način doživljavanja svijeta, dodir i okus spojeni u jedno osjetilo, rašireno preko osam neovisnih krakova. Hobotnici koja lovi u potpunom mraku ta bi kombinacija mogla biti korisnija nego što bi oči ikad mogle biti.
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