Rare wispy ice formations streak across the sea near Antarctica in beautiful satellite images

Scientists Unearth a Ginormous Triassic Sea Monster That Once Roamed The 'Superocean'

55-foot-long Triassic sea monster discovered in Nevada

Whole-body regeneration has been identified in photosynthetic sea slugs. The slugs shed their entire body, including the heart, and while the body is detached the head takes on chloroplasts from algal food. These chloroplasts are used for photosynthesis, thought to aid survival of the severed head.