ScienceScientists Discover Oldest Sperm Inside Fossilized Cocoon Of Mysterious Worm Ancient sperm could reveal more than the tale of a 50-million-year-old worm. It could open a new world of discoveries in paleontology.by James Maynard
SciencePolar Bears May Be In Danger From High Metabolisms As Global Warming Affects Arcticby James Maynard