Birds boast some of the most vibrant colors among terrestrial animals. The tropics are often renowned for the brightest birds, but U.S. birds also display a wide array of striking hues. But just how ...

While hiking in the Cascade-Siskiyou National Monument in Siskiyou County near California’s northern border, I came across several colorful birds that were zipping around at high speed to gobble up ...

Birds tend to be more colorful in the tropics, and scientists wanted to find out how they got there: if colorful feathers evolved in the tropics, or if tropical birds have brightly-colored ancestors ...

In preparation for a presentation on the birds we saw while in Ecuador recently, I was struck by how many of the birds were extravagantly colored, many eye-poppingly so. Thumbing through my field ...

Birds are some of the most colorful animals on Earth, with a palette of rainbow tones to feast your eyes on. Here are our picks for some of our most flamboyant feathered friends. When you purchase ...

(THE CONVERSATION) People typically think about evolution as a linear process where, within a species, the classic adage of “survival of the fittest” is constantly at play. New DNA mutations arise and ...

Genetic sharing among evolutionary neighbors all happens through hybrids: the offspring produced when individuals from two species mate. Famous hybrids include offspring between polar and grizzly ...