Scientists have traced the human eye back to a tiny one-eyed ancestor that lived nearly 600 million years ago — and remnants of that ancient “cyclops” eye may still survive inside our brains as the pineal gland
Scientists reconstructed a Wyoming forest from 56-million-year-old fossil leaves; it lost about 60% of its canopy during ancient warming and took more than 100,000 years to recover
Scientists uncovered a bizarre crocodile cousin from 215 million years ago that started life walking on all fours, then changed its entire stance as it grew — by adulthood it was standing upright and striding around on two legs
Antarctica developed a continental-scale ice sheet 34 million years ago while Earth was about 5°C warmer than today — helped by slow-moving mantle waves that had spent more than 100 million years lifting its interior high enough for permanent ice to survive.
A Chicago physicist proposed a way to create quantum images 20 years ago; after two decades waiting for experimental proof, superconductors have finally produced the effect he predicted
Once the Solar System's Ninth Planet, Pluto Was Reclassified 20 Years Ago. Here's Why Planetary Scientists and the Public Alike Love the Small Icy Body