National Geographic : 1971 Aug
!d of its home (far left). Droppingfrom the center v- of a second strand g stretched across the gap, it anchors a vertical thread and quickly secures more he radial lines. Then, starting from the hub, it puts down he a temporary dry-thread ine spiral. That done, it reverses direction and lays down a new one of sticky insect-trappingsilk, while rolling up the first spiral.