Hummingbirds have the ability to see nonspectral colors thanks to four color cone types present in their eyes (a phenomenon known as tetrachromacy); humans only have three cone types (trichromacy ...

But birds have four color cones, meaning they are tetrachromatic. With our three color cones, we can see the colors of the rainbow—red, orange, yellow, green, blue, indigo, and violet—the so ...

Birds are known for their exceptional color vision, and many types of birds — among them pigeons, turkeys, ducks and geese — can see in the UV spectrum. Little is known about the vision of ...

"This color vision system is the norm for birds, many fish and reptiles, and it almost certainly existed in dinosaurs.

“Hummingbirds are perfect for studying color vision in the wild. These sugar fiends have evolved to respond to flower colors that advertise a nectar reward, so they can learn color associations ...

Bird flu may change eye color in some birds that survive infection - study Black irises could be used as a likely indicator of prior infection with avian influenza. By TZVI JOFFRE MAY 7, 2023 01:38 ...

Birds are known for their exceptional color vision, and many types of birds — among them pigeons, turkeys, ducks and geese — can see in the UV spectrum. Little is known about the vision of ...

Birds depend on their color vision for selecting mates, hunting or foraging for food, and spotting predators. Until recently, ultraviolet vision was thought to have arisen as a one-time ...

In this episode of The Highlights, we're joined by Mary Caswell (Cassie) Stoddard, a professor in the Department of Ecology and Evolutionary Biology (EEB). We discuss her career in sensory ecology and ...

Birds depend on their color vision for selecting mates, hunting or foraging for food, and spotting predators. Until recently, ultraviolet vision was thought to have arisen as a one-time ...

Color vision also probably proved especially important underwater, where vertebrate species first evolved, for differentiating hues that resulted when light was filtered through the liquid.