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How did von Baer describe his laws of embryology?
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Apr 15, 2014 · Published: 2014-04-15. In 1828, while working at the University of Königsberg in Königsberg, Germany, Karl Ernst von Baer proposed four laws of animal development, which came to be called von Baer's laws of embryology. With these laws, von Baer described the development (ontogeny) of animal embryos while also critiquing popular theories of ...
Karl Ernst von Baer was a Prussian-Estonian embryologist who discovered the mammalian ovum and the notochord and established the new science of comparative embryology alongside comparative anatomy. He was also a pioneer in geography, ethnology, and physical anthropology.
In developmental biology, von Baer's laws of embryology (or laws of development) are four rules proposed by Karl Ernst von Baer to explain the observed pattern of embryonic development in different species. von Baer formulated the laws in his book On the Developmental History of Animals (German: Über Entwickelungsgeschichte der Thiere ...
Together with Heinz Christian Pander and based on the work by Caspar Friedrich Wolff, he described the germ layer theory of development ( ectoderm, mesoderm, and endoderm) as a principle in a variety of species, laying the foundation for comparative embryology in the book Über Entwickelungsgeschichte der Thiere (1828).
Dec 1, 2013 · In 1828, Karl Ernst von Baer formulated a series of empirically defined rules, which became widely known as the ‘Law of Development’ or ‘von Baer's law of embryology’. This was one the most significant attempts to define the principles that connected morphological complexity and embryonic development.
passing reference in this paper, von Baer's conception of development led to a new approach to zoological classification. And Richard Owen and William B. Carpenter used von Baer's embryology as the analogical basis for a new paleontological theory. One reason for the persistent underestimation of the impact of von
