Zhongjianornis an enlarged, keeled breastbone in more advanced birds. However, later analysis of the anatomy of "Z. yangi" cast doubt on this interpretation of the bird as very primitive. Research published in 2012 found that some of the apparently primitive features were due to poor preservation of the bones, and that "Zhongjianornis" is more similar in anatomy to primitive euornitheans like "Chaoyangia" and "Schizooura". A phylogenetic analysis showed that a very primitive position in the bird family tree for "Z. yangi" is unlikely given current evidence. Zhongjianornis Zhongjianornis is a genus of beaked, pigeon-sized birds from the early Cretaceous period of
Anatomy for Beginners Anatomy for Beginners Anatomy for Beginners is a television show created by Gunther von Hagens. In this 4-part series, Dr von Hagens and Professor John Lee demonstrated the anatomical structure and workings of the body. The 4 episodes ("Movement", "Circulation", "Digestion" and "Reproduction") were screened in the United Kingdom on Channel 4 in 2005. The show features public anatomy demonstrations with the use of real human cadavers and live nude models (for Surface Anatomy and Surface Markings), carried out at Gunther von Hagens' "Institute for Plastination" in Heidelberg, Germany. Dr von Hagens’ public demonstrations are not formal anatomy dissections performed