This colossal new megapredator may have outsized T. rex

Behold Siats meekerorum, one of the largest terrestrial apex predators ever discovered. Paleontologists think it may have been bigger than even the almighty T. rex, holding it back on the evolutionary food chain for millions of years. » 11/22/13 6:40am 11/22/13 6:40am

Recently discovered species of raptor validates the fears of anyone who…

One of the most recognizable characteristics of raptor dinosaurs — the clever, pack-hunting carnivores immortalized in the Jurassic Park movie series — is the enormous, scythe-like talon located on the second digit of each of their feet. But the true function of this intimidating anatomical feature has puzzled… » 9/19/11 5:00pm 9/19/11 5:00pm