Many animals have interesting ways of disguising themselves from predators, but orb-web spiders (Cyclosa ginnaga) are true masters of camouflaging themselves in ways that wouldn't warrant a second look. Silver bodies and white decorations on their webs make orb-web spiders look just like bird droppings. Not exactly appetizing! The white areas are called stabilimenta, and are made from prey carcasses, egg sacs, plant matter or silk.