Webs can be decorated with decoys, fine-tuned like guitars—and hold secrets about evolution. A Cyclosa spider is camouflaged on a web with debris attached to make itself less visible at the Los Amigos ...

Researchers have finally figured out how slingshot spiders (Theridiosoma gemmosum) are so accurate when they fire their webs at prey. Everything from the timing to the angle at which they fire their ...