More than twice as old as the most ancient dinosaur fossil, Helicocystis moroccoensis lived during the Cambrian Explosion, when all organisms lived in seas and life on Earth began to race toward its modern diversity.
Listen to Our January Music Roundup Beat the chill with our winter playlist, exclusively for Slate Plus members.
Is Snapchat Really Confusing, or Am I Just Old? A 32-year-old’s hopeless quest to understand America’s fastest-growing social app.
Another Data Point New England’s incredible ball security is not impossible, but also not meaningless.