A biologist has captured stomach-churning images of a squirrel tucking into a lizard that shatter the popular image of cute bushy-tailed creatures dining on acorns and seeds. Jeff Nordland ...

a nebula shaped like a cat’s paw and the iconic “Pillars of Creation” are just a few of the celestial objects among the batch of never-before-seen images captured by NASA’s Chandra X-ray ...

A fair number of snake and lizard species have heads adorned with ... predators because a structure that enlarges their head and silhouette may render them more visible while moving.” ...