Aug. 29 (UPI) --According to a new study, some birds of prey can detect contrasts between objects at a greater distance than humans -- but only if the object is a different color than the background.

image: While humans have three color cones in the retina sensitive to red, green and blue light, birds have a fourth color cone that can detect ultraviolet light. A research team led by Princeton's ...

image: In many cases it is the color of the prey that helps predatory birds to detect, pursue and capture them. In a new study, biologists at Lund University in Sweden show that the Harris's hawk has ...

"This color vision system is the norm for birds, many fish and reptiles, and it almost certainly existed in dinosaurs. We think the ability to perceive many nonspectral colors is not just a feat of ...

A male Broad-tailed Hummingbird photographed at the Rocky Mountain Biological Laboratory in Gothic, Colorado, where researchers conducted field experiments on avian color vision. Noah Whiteman / ...

Researchers have spent three years studying hummingbirds to deduce whether they can distinguish between spectral and nonspectral colors. A newly published paper has confirmed that these incredible ...

"Contributions have been based around presentations at the Second European Conference of Avian Colour Vision and Coloration, in Paris"--P. S2. "Supplement to The American naturalist, volume 169, ...

A male hummingbird simply pausing on a perch can mesmerize us with his colorful, iridescent plumage. But it turns out we humans are likely missing the full effect—because hummingbirds see colors that ...

From performing intricate surgeries or hitting baseballs that come at us at 100 miles per hour, we humans might think that we have pretty decent vision. But according to a recent study published in ...

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 ...