Scientist Mary Schweitzer made a spectacular discovery when she found soft tissue in the bones of two dinosaurs. The first discovery was a Tyrannosaurus rex bone believed to be 65 million years old. The other was a hadrosaur bone believed to be 70 million years old. Both specimens had soft tissue in the bones. In the T. rex bones she found evidence of red blood cells, hemoglobin, and collagen inside the leg bone.
This important piece of evidence is a very special dinosaur bone. In May, 2006, Helen Fields wrote an article about the bone for 'Smithsonian Magazine, aptly titled, "Dinosaur Shocker". The article details a very special Tyrannosaurus rex bone that was found in the most provocatively named Hell Creek Formation in Montana. The following quote from "Dinosaur Shocker" sets the stage for this tide-turning discovery. Fields wrote : "It was big news indeed last year when Schweitzer announced she had discovered blood vessels and structures that looked like whole cells inside that T.rex bone, the first observation of its kind. The finding amazed colleagues, who had never imagined that even a trace of still-soft dinosaur tissue could survive. After all, as any textbook will tell you, when an animal dies, soft tissues such as blood vessels, muscle, and skin decay and disappears over time, while hard tissues like bone may gradually acquire minerals from the environment and become fossils."
Mary Schweitzer, an evolutionary paleontologist was amazed at what she saw. Schweitzer said, "I looked at this and I looked at this and I thought this can not be. Red blood cells do not preserve." Dr Schweitzer is absolutely correct on this point. red blood cells do not preserve, especially for 65 million years! That is also why her colleagues were "amazed" and never imagined that even a trace of still-soft dinosaur tissue could survive. Her colleagues wanted her to disprove that those red blood cells were, in fact red blood cells. But she found instead the evidence of heme in the bones. Heme is a part of hemoglobin, the protein that carries oxygen in the blood and gives red blood cells their color.
Then she discovered collagen in a hadrosaur bone that was also discovered from the same Hell Creek Formation were the Tyrannosaurus rex was found. There were not just blood cells; there was "stretchy brown matter", soft tissue from inside the bones and had not completely decomposed.
These two discoveries are truly great and it is exactly what a creationist would expect. This points to a young age than to 65 million years. These soft remains dictate that they are only thousands of years old at best. This puts these discoveries in perspective to what the Bible says in the Book of Genesis, about Creation (Genesis 1:1-31) and the global flood in Noah's day (Genesis 6-8).