Dragonfly Color Vision
Life Dragonfly eyes see the world in ultra-multicolour By Catherine Brahic 23 February 2015 Super sight: Dragonflies can detect up to 30 different vision pigments (Image: Mitsuhiko Imamori/Minden. In this article, I aim to introduce the genetic basis of the color polymorphisms, and review recent progress in molecular mechanisms underlying the color vision and color formation in dragonflies. Dragonflies have a unique color vision that surpasses anything ever seen in the animal world.
They have four or five different opsins, allowing them to see colors beyond human visual capabilities, such as ultraviolet (UV) light. Here I introduce the recent topics of molecular mechanisms underlying color vision and color formation in dragonflies. Complex wing color polymorphism is recognized among the two closely related Japanese Mnais species, presumably due to stepwise character displacement to avoid interspecific mating.
Dragonfly Color Meaning: the Symbolism Behind Various Hues
Vision also plays a role in dragonfly social behaviors, particularly mating. Their ability to see UV light and a broad spectrum of colors helps them identify potential mates and rivals. Males often display vibrant colors and perform intricate aerial maneuvers to attract females and defend their territories.
Keywords: dragonfly, opsin, color vision, molecular evolution Abstract Dragonflies are colorful and large. Color vision and opsin gene diversity in dragonflies Many animals possess color vision, which increases the ability to recognize environments and organisms. New Scientist: Dragonflies apparently surpass all other known animal species in the ability to see color.
Extreme Close-up of a Dragonfly Eye, Showing the Intricate Pattern and ...
Whereas the vision of most mammals, birds, and insects is di-, tri,- or tetrachromatic-humans, for example, see colors as a combination of red, green, and blue. As a result, these dragonfly species probably also have a corresponding decrease in overall color perception. Dragonflies (and bees) have the largest compound eyes of any insect; each containing up to 30,000 facets, and the eyes cover most of the insect's head, resembling a motorcycle helmet.
Dusk-active dragonflies have sacrificed most of their color vision in favor of increased light-collecting capacity by having fewer, larger facets in their eyes.
