70 Million Years Ago, Days Were 30 Minutes Shorter, According to this Ancient Clam

Has humanity been doing it all wrong? We’re busy staring off into space with our futuristic, ultra-powerful telescopes, mesmerized by ethereal nebulae and other wondrous objects, and trying to tease out the Universe’s well-kept secrets. Turns out, humble, ancient clams have something to tell us, too. A new study published in the American Geophysical Union’s …