Typically, male birds have more vivid colours than females. As Charles Darwin first explained, the most colourful males are ...

Hidden layers of colour in the plumage of tanagers and some other songbirds explain what makes them so eye-catching ...

A growing body of evidence suggests she might have survived into old age — which would entirely change the story of America’s ...

Stretching 710 miles across Texas, the Trinity River is a vital habitat for a diverse variety of wildlife. With its forests, ...