Beneath the surface of a Colombian coal mine, scientists made a discovery so extraordinary that it rewrote what we know about giant reptiles. In 2009, researchers unearthed fossil remains of an ...

Carlos Jaramillo (top row, third from the right), a staff scientist at the Smithsonian Tropical Research Institute, co-organized the team that discovered the largest snake in world history. Courtesy ...

Earth, our dynamic and life-sustaining planet, is approximately 4.543 billion years old. Over these vast eons, it has undergone dramatic transformations—from fiery origins and shifting continents to ...

Scientists call it Titanoboa cerrejonensis. It was the largest snake ever, and if its astounding size alone wasn’t enough to dazzle the most sunburned fossil hunter, the fact of its existence may have ...