Jack Horner - How to Build a Dinosaur

At the dig, the scientists are using methods that allow them to determine that one of the T Rex fossils that they found was a female, and pregnant. The processes used to do this were part of the Paleohistology branch of science, or the study of ancient tissue. Similar processes were also used to determine that many dinosaurs are actually warm-blooded. In certain bones of dinosaurs, red blood cells and hemoglobin are still present. I find all of this very interesting, because i did not know that most dinosaurs were warm-blooded, I have never even heard of Paleohistology before, and i never would have thought that red blood cells and hemoglobin could still be present in a bone millions and millions of years old

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