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  1. Oscar Hertwig (Friedberg, 21 aprile 1849 – Berlino, 25 ottobre 1922) è stato uno zoologo e biologo tedesco, che scrisse in particolare sulla teoria dell'evoluzione circa il 1916, oltre 55 anni dopo il libro di Charles Darwin, L'origine delle specie.

  2. Oscar Hertwig (21 April 1849 in Friedberg – 25 October 1922 in Berlin) was a German embryologist and zoologist known for his research in developmental biology and evolution. Hertwig is credited as the first man to observe sexual reproduction by looking at the cells of sea urchins under the microscope.

  3. 17 apr 2019 · This is how he became the first man to actually observe sexual reproduction, completely and in all its glorious detail. He did so by looking at the cells of sea urchins under the microscope, a discovery that paved the way for techniques of fertilisation and assisted reproduction.

  4. 17 apr 2024 · Oskar Hertwig was a German embryologist and cytologist who was the first to recognize that the fusion of the nuclei of the sperm and ovum was the essential event in fertilization. After studying medicine and zoology at Jena, Zürich, and Bonn, he obtained a lectureship in anatomy at the University.

    • The Editors of Encyclopaedia Britannica
  5. 16 apr 2024 · ONE of the founders of the science of heredity and one of Germany's most brilliant embryologists and comparative anatomists, Wilhelm August Oscar Hertwig was born a century ago, on April 21,...

  6. 1 nov 2007 · Wilhelm August Oscar Hertwig contributed to embryology through his studies of cells in development and his discovery that only one spermatozoon is necessary to fertilize an egg. He was born 21 April 1849 to Elise Trapp and Carl Hertwig in Hessen, Germany.

  7. Oscar Hertwig ( Friedberg, 21 aprile 1849 – Berlino, 25 ottobre 1922) è stato uno zoologo e biologo tedesco, che scrisse in particolare sulla teoria dell'evoluzione circa il 1916, oltre 55 anni dopo il libro di Charles Darwin, L'origine delle specie.