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- Carnivor fossils are rare but there are almost no mid-sized dinosaur carnivores. Two small tyrannosaurs are described here. Some scientists think they are juvenile tyrannosaurus rex. Others believe they are a different species because they have some significant anatomical differences. Could it be that juvenile tyrannosaurs filled the niche of mid-size predator and their anatomical difference satisfied a physiologic need as they grew?
- The evolutionary battle between Mammals and Dinosaurs comes to an end with Mammals as the winner.
- A mining operation in Cerrejon, Northern Colombia, opened a window onto a previously unknown period of the earth's history and a world teeming with giant creatures emerged.