Web of Lies
Orb spiders on Taiwan's Orchid Island place bundles of prey carcasses and egg sacs on their webs, making the webs more visible to predators. A bad strategy? Not really. Researchers at Tunghai University found that the globs, similar in size and color to the spiders' bodies, act as decoys. The more there are, the less likely a bird is to attack the actual spider.
Learn more about the decoy-making orb spider at the Encyclopedia of Life.