I saw some time behind a documentary (I don't remenber, probably BBC ou Discovery) about a trapdoor spider of the desert, wich used a very interesting hunt technique!
By constructing the burrow, it placed around the hole several stones chosen with care, round format. From each one of the stones, the spider plugs a silk line. At the other end, where those lines met, it sits...
When something a touch one of these stones, through the kind of vibration caused to the silk lines, the spider could identify whether it was the wind, a potential predator or prey...
Someone knows the name of this spider? Thank You!
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