from TJ Skelton, who asks via Facebook: “
Can a color-blind animal still tell if another animal is [venomous],
even if they can’t see the bright colors?
Shades of Prey: Can Color-blind Predators See Warning Colors?
Snakes, butterflies, and more have evolved vibrant patterns to advertise their toxicity to predators.
The blue and yellow poison dart frog (pictured at the Sunset Zoo in Kansas) advertises its toxicity through its colors.
PHOTOGRAPH BY JOEL SARTORE, NATIONAL GEOGRAPHIC CREATIVE