Colors are widely used in communication within and among animal species. For example, peacocks proudly display their vibrant tails, adorned with iridescent eyespots, to attract peahens for courtship.

The animal world is incredibly colorful, and behind this color palette is a constant game of survival. Most animals use camouflage, covering themselves in stealthy patterns to hide from predators.

Gathering vision data for hundreds of vertebrates and invertebrates, biologists have deepened scientists' understanding of animal vision, including the colors they see. The researchers determined that ...