Saturation refers to the depth, or richness, of a color: pastels are examples of highly desaturated colors. At the photoreceptor layer, saturation originates from imbalances in the relative response ...

In our newly published research in Science Advances, my student Ben Alessio and I propose a potential mechanism explaining how these distinctive patterns form—that could potentially be applied to ...

Why does a Caribbean angelfish sometimes resemble its Indo-Pacific cousin, even though they have never lived in the same ocean? Why do coral reefs harbor such a wide range of stripes, spots and ...

Heliconius charithonia is one of the species of butterflies whose wing patterns scientists scrutinized to better understand the evolutionary process. This butterfly is wild-type; the genetically ...

Similarities in how different organisms look can indicate a close evolutionary relationship. Conversely, great differences in appearance can suggest a very distant relationship, as in many adult ...

September 7, 2021 (Huntsville, Alabama)- Members of the Felidae family, more commonly referred to as cats, come in a variety of sizes and a range of varying fur colors and patterns. Tigers with black ...

The common buzzard’s range of colors is shrinking, with intermediate-colored birds becoming more common while light and dark forms decline.

An international team of scientists working with Heliconius butterflies in Panama was faced with a mystery: how do pairs of unrelated butterflies from Peru to Costa Rica evolve nearly the same ...