Some of these giant vegetarians were as tall as a 3-story building. Microscopic analysis of their teeth, bones and eggshells ...

In this reptile trivia challenge, a fifth grader and an adult go head-to-head with tough questions about reptiles. The stakes rise when the world’s largest snake, a massive anaconda, is introduced, ...

Yellowstone National Park is one of the most famous parks in the United States, but it isn’t usually known for its reptiles. Nevertheless, there are plenty of snakes that live in the park, with some ...

Warm Earth = Big Reptiles Credit: Wikimedia Commons During the Middle Eocene, global temperatures were much higher, about 82°F (28°C) on average. These warmer conditions helped reptiles, especially ...

A replica fossil of the titanosaur _Patagotitan_, one of the largest dinosaurs ever discovered. It would have weighed about 70 tons (63.5 metric tons.) Spencer Platt/Getty Images News via Getty Images ...