Birds and insects have color vision that uses different color receptors than humans. Birds that pollinate flowers have excellent vision in the red. Some insects, bees for example, can see ultraviolet, others are more sensitive to blue light than to red light. By looking through the red filter you can imagine how different the world might look to a bird. By looking through the green filter you can imagine how different the world looks to an insect.
Some flowers have ultraviolet markings that can only be seen by insects.
Activity written by Paul Doherty Inspired by an activity by Karen Kalumuck, color guessing activity by Marie Wallum.