Rowdy has everyone laughing with his love of dance, but his unique look can stir up a lot of questions, too. Salmon-crested, ...

The vulturine guinea fowl’s electric blue feathers are not pigments. Scientists reveal how microscopic structures manipulate ...

Transforming an aldehyde into a carboxyl group can fine-tune feathers from red to yellow But how psittacofulvin pigments shift shades was unclear. An enzyme called ALDH3A2 alters the chemical ...