Ecologists get fish eye view of sexual signals
Wednesday, November 10, 2010 - 06:00
in Biology & Nature
Carotenoid pigments are the source of many of the animal kingdom's most vivid colours; flamingos' pink feathers come from eating carotenoid-containing shrimps and algae, and carotenoid colours can be seen among garden birds in blackbirds' orange beaks and blue tits' yellow breast feathers.