Now Playing: Dinosaur blood and polystrate trees debunked
Description: Sources quoted in this video: "Heme compounds in dinosaur Trabecular bone" -- Schweitzer, et al., Proceedings of the National Academy of Sciences, June 1997 Soft-tissue vessels and Cellular preservation in Tyrranosaurus Rex Schweitzer et al., Science 2005 Biomolecular Characterization and Protein Sequences of the Campanian Hadrosaur B. canadensis Schweitzer et al., Science, May 2009 The Geological Structure, Organic Remains, and Mineral Res...