Slingshot, or ray spiders (Theridiosoma gemmosum) pull the center of their flat web back, to form a cone with the spider at the tip, keeping the net in place by holding on to a taut anchor thread.
Slingshot spiders (Theridiosoma gemmosum) pull the centre of their web back creating a cone which they release, catapulting forward, to capture passing insects. Now researchers from The University of ...