In 1773, German zoologist J.A.E. Goeze looked through a microscope at a sample of water and was surprised to discover a tiny, eight-legged, slow-moving animal. Its body resembled a shriveled, shrunken ...

New research finds that the microscopic “water bears" are remarkably good at repairing their DNA after a huge blast of radiation. By Carl Zimmer To introduce her children to the hidden marvels of the ...