To an outsider, working as a university professor might seem like a dream: summers off, a few hours of class each week, an exchange of ideas with brilliant colleagues, books and late afternoon lattes... Who wouldn't envy that life? But those in the t...

When it comes to color, nothing can surpass the vast palette found in nature, from a bright green leaf in a sun-dappled forest to the rich red feathers of a cardinal and the muted greens, ambers, and browns that make up the shell of a tortoise. Wildl...