One Tyrannosaurus rex seems scary enough. Now picture 2.5 billion of them. That’s how many of the fierce dinosaur king probably roamed Earth over the course of a couple million years, a new study finds. Using calculations based on body size, sexual maturity and the creatures' energy needs, a team...
Sturgeon, America's Forgotten Dinosaurs, Show Signs of Life
CHARLES CITY, Va. — Sturgeon were America's vanishing dinosaurs, armor-plated beasts that crowded the nation's rivers until mankind's craving for caviar pushed them to the edge of extinction. More than a century later, some populations of the massive bottom feeding fish are showing signs of recovery in the dark corners...