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Backyard songbirds, like cardinals and chickadees, see the world with visual clarity surpassing human eyesight. Acute bird vision derives from the retina's fovea - the center of sharpest vision - that ...

If optimists see the world through rose-colored lenses, some birds see it through ultraviolet ones. Avians have evolved ultraviolet vision quite a few times in history, a new study finds. Birds depend ...

The most attractive male birds attract more females and as a result are most successful in terms of reproduction. This is the starting point of many studies looking for factors that influence sexual ...

Ultraviolet vision evolved at least eight times in birds from a common violet sensitive ancestor finds a new study. All of these are due to single nucleotide changes in the DNA. Ultraviolet vision ...

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If optimists see the world through rose-colored lenses, some birds see it through ultraviolet ones. Avians have evolved ultraviolet vision quite a few times in history, a new study finds. Birds depend ...