These snakes typically have a sleek black body, but some species show faint yellow markings ... themselves at home hunting prey like mice and birds. The pit viper family includes some of the ...

Across the animal kingdom, birds are some of the most colourful creatures of all. But how did all the amazingly coloured ...

Nearly all birds with bright red, orange, and yellow feathers or bills use a group of pigments called carotenoids to produce ...

Australian finches' bill colors come from small genetic variations affecting how they process dietary pigments.

The migratory pattern of the scarlet tanager typically involves a straight line from as far north as Maine to as far south as ...

From the Carnival in Rio de Janeiro to the shoulders of pirates: parrots are synonymous with colour for people across the ...

Corbo and colleagues turned to the dusky lory (Pseudeos fuscata), a parrot species that comes in red and yellow varieties, and rosy-faced lovebirds, (Agapornis roseicollis) which have both red and ...