Some snakes alive today can grow to enormous sizes. There are tales of some large snakes, such as the anaconda or reticulated python, growing to 20 to 30 feet. Millions of years ago, however, an even ...

Dr. Carlos Jaramillo of the Smithsonian Tropical Research Institute shares the incredible story of the Titanoboa, a colossal snake that lived 60 million years ago. He explains how its fossils were ...

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 ...

Dr. Scott explains all about the prehistoric marine species Mosasaurus. Dr. Scott explains all about the prehistoric marine species Mosasaurus. Dinosaur Train is available to stream on pbs.org and the ...

Sixty million years ago, in the sweltering rainforests of South America, Titanoboa emerged as the apex predator. This immense snake, reaching nearly 45 feet and weighing 2,500 pounds, crushed ...