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...

is due to fusion of an egg and sperm cell. von Baer formulated what became known as Baer's laws of embryology: General characteristics of the group to which...

Evolutionary embryology is the expansion of comparative embryology by the ideas of Charles Darwin. Similarly to Karl Ernst von Baer's principles that...

Haeckel's theory of recapitulation, von Baer enunciates his most notorious laws of development. Von Baer's laws state that general features of animals...

around 1830, notably by Robert Edmond Grant, but was opposed by Karl Ernst von Baer's ideas of divergence, and attacked by Richard Owen in the 1830s. Ernst...

on a linear chain of being, and Karl Ernst von Baer's opposing view, stated in von Baer's laws of embryology, that the early general forms diverged into...

methods of hardening, sectioning and staining. Much of the progress which embryology made during the middle and latter half of the 19th century are associated...

processes, including ciliary function. Today, von Baer's legacy inspires ongoing research into embryology and developmental biology, particularly in understanding...

processes evolved. The field grew from 19th-century beginnings, where embryology faced a mystery: zoologists did not know how embryonic development was...

Karl Ernst von Baer created his laws of embryology, which summarized the results of his comparative embryogenesis studies. In his first law, he proposed...