Walther S. H. von Baer

Walther S. H. von Baer was a prominent 19th-century German biologist who is best known for his work in embryology and evolutionary biology. He is credited with formulating the "principle of developmental resemblance," which suggests that embryos of different species share similar early developmental stages before diverging into their distinct forms. This concept laid the groundwork for understanding evolutionary relationships among organisms. Von Baer's contributions have significantly influenced modern biology, especially in the fields of embryology and comparative anatomy, highlighting the interconnectedness of life through common developmental processes.