Researchers have successfully reanimated the bodies of 46,000-year-old microscopic roundworms they found frozen 130 feet below the Siberian permafrost. Amazingly, the worms got to work right away, and ...

Dugesia japonica, a tiny asexual flatworm, has an unusual way of reproducing: It tears itself in half and each section regenerates what it lost. Now a group of scientists from UC San Diego has ...