In his diagrams, which showed how colors corresponded to notes, Newton introduced two colors—orange and indigo—corresponding to half steps in the octatonic scale. Whether Newton’s friend delineated ...

The docile, nonvenomous eastern indigo snake is known for its lustrous, blue-black body; the reddish-orange hue on its chin, throat and cheeks; and its large size, as long as 7 feet from nose to tail, ...

Its body, including the belly, is shiny and bluish-black in color. Its chin and the sides of its head are reddish- or orange-brown in color. Juvenile indigo snakes look very similar to adults but have ...