Jacques Loeb (1859-1924)

<a href="/search?text=Jacques%20Loeb" title="" class="lexicon-term">Jacques Loeb</a>

Jacques Loeb experimented on embryos in Europe and the United States at the end of the nineteenth and beginning of the twentieth centuries. Among the first to study embryos through experimentation, Loeb helped found the new field of

John Tyler Bonner (1920- )

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The establishment and growth of developmental-evolutionary biology owes a great debt to the work of John Tyler Bonner. Bonner’s studies of cellular slime molds have shed light on some of the big questions of biology including the origins of multicellularity and the nature of

Elizabeth Maplesden Ramsey (1906-1993)

Elizabeth Maplesden Ramsey

Physician and pathologist Elizabeth Maplesden Ramsey was a member of the Carnegie Institution of Washington (CIW) for thirty-nine years. The affiliation began in 1934, when Ramsey discovered what was assumed to be the youngest-known embryo at the time, and donated it to CIW’s massive embryo collection. After studying embryos, Ramsey focused her research on placental circulation in primates.


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