Centuries before the now-banned red dye No. 3 was synthesized in a lab, humans turned to insects to bring a little scarlet, vermillion or burgundy into their foods, fabrics and artwork. On Jan. 15, ...

This media is in the public domain (free of copyright restrictions). You can copy, modify, and distribute this work without contacting the Smithsonian. For more information, visit the Smithsonian's ...