The findings were clear. The more toxic the substance, the more chaotic and incomplete the web. Caffeine, surprisingly, produced some of the most disorganised patterns, with spiders failing to finish ...

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 ...

Joro spider webs sometimes pop up in noisy spots. To figure out why, researchers measured spider heartbeats. Joro spiders (Trichonephila clavata) first arrived in the U.S. over a decade ago, and ...