Why does a Caribbean angelfish sometimes resemble its Indo-Pacific cousin, even though they have never lived in the same ...

The colors and patterns of black swallowtails reveal the diversity of evolutionary dynamics acting on the sexes and the various life-history stages Six species of swallowtail butterflies occur locally ...

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

A study published by Nature Ecology & Evolution shows that the distinctive coat patterns we recognize in today's favorite dog breeds aren't actually due to mutation and domesticated breedings, as ...

After reconstructing the color patterns of a well-preserved dinosaur from China, researchers have found that the long-lost species Psittacosaurus (meaning "parrot lizard," a reference to its ...