An Atlas moth (Attacus atlas) rests on a tree trunk with its wings closed. A bird, hoping for a snack, creeps closer, until it’s within striking distance. Just as it’s about to pounce, the moth’s wings spring open—and bam! Instead of a moth, the bird suddenly sees not one, but two snake heads. Confused and startled, the bird flies away—and the moth gets to live another day.