Eyespots appear on both adults and larvae and are often highly distinguishable from the rest of the animals' wing patterns. The eye-catching markings are usually circular, made up of concentric rings ...

During the wet season, this Bycyclus anyana butterfly has large, bright eyespots that help it avoid the most important predator at that time -- praying mantids. Disclaimer: AAAS and EurekAlert!

Scientists, stumped by that question throughout the animal kingdom ... and distribution of the colorful eyespots. Experiments show that offspring of males with more eyespots are bigger at birth ...