Some echinoderms have thousands of eyes on their backs. When the lights come on, they switch to wearing shades.
Through Islam and the Internet, a new generation seeks its fair share.
By the 1920s, California had lost all of its grizzly bears—once considered a distinct species and an emblem of the state.
Preconceptions skew our view of the biggest killer in the developed world, atherosclerosis.
Across the Pacific Ocean, plastics, plastics, everywhere