When I was little and tagging along when my dad tended his vegetables, I would sometimes find large black and yellow garden spiders. They were beautiful, and I noticed they had a curious trait: they often added a bright white decorative zigzag to their webs. I always wondered why, if a spider web is meant to catch insects unawares, these spiders would go to such effort to make their webs more visible?
To answer this question, I recently spoke with Dr. Todd Blackledge, who researches spider silk and the web decorations of garden spiders. » Continue Reading.