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Some animals, such as goldfish, butterflies, and snakes, can see infrared light, while bees, birds, lizards, and insects can see ultraviolet light. Humans can use night vision equipment or thermographic devices to see infrared, which is used in remote controls and telescopes. Some butterflies use ultraviolet light in their mating rituals, and penguins can also see in the ultraviolet range to help them hunt in water.
Humans can’t see infrared light, but many animals can. Goldfish, some butterflies, and some snake species can see infrared radiation, which humans can only perceive as a medium of heat. Bees, birds, lizards, and some insects can also see ultraviolet (UV) light, which is at the other end of the light spectrum.
Learn more about infrared and ultraviolet light:
Humans can see infrared with the use of night vision equipment or with thermographic devices. Infrared radiation is used in things like remote controls, personal digital assistants (PDAs), and some types of telescopes. Art historians can use infrared radiation to see layers of paintings that have been painted, such as a portrait of a woman by Vincent van Gogh beneath his Grasgond painting.
Some butterflies use ultraviolet light to communicate. Cabbage white butterflies, for example, use a UV light reflection system in their mating rituals.
Penguins’ vision is mostly tuned to greens, blues, and purples, but they can also see light in the ultraviolet range, which is thought to help them hunt in water.
