This is the time of year when thoughts turn to birds of the kind that's loaded with tryptophan and side dishes. But earlier this week there was exciting news about the direct predecessor of birds: the dinosaurs. Fossilised remains have been found in Utah of a gigantic dinosaur which lived about 100 million years ago, in the Cretaceous period just preceding the era of Tyrannosaurus rex.
This dinosaur, named Siats meekerorum, was one ugly brother, if you believe the reconstructions. A giant carnivore, it looked much meaner than T. rex; in fact, it probably terrorised T. rex for millions of years. The specimen found in Utah was an impressive 30 feet long and weighed about 9,000 pounds - and that was a juvenile.
It wasn't until after Siats became extinct that T. rex developed into the late-Cretaceous giant we know today, one of the largest land carnivores of all time. An adult T. rex could reach a total length of about 40 feet, and weigh a massive 14,000 pounds. No wonder it was always hungry.