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Jan or Johannes Swammerdam (February 12, 1637 – February 17, 1680) was a Dutch biologist and microscopist. His work on insects demonstrated that the various phases during the life of an insect—egg, larva, pupa, and adult—are different forms of the same animal.
Jan Swammerdam (baptized Feb. 12, 1637, Amsterdam—died Feb. 15, 1680, Amsterdam) was a Dutch naturalist, considered the most accurate of classical microscopists, who was the first to observe and describe red blood cells (1658).
- The Editors of Encyclopaedia Britannica
Learn about Jan Swammerdam's life and work, his discoveries in anatomy and development, and his mystical and experimental philosophy. This site contains information, links and a book recommendation by Matthew Cobb.
Oct 31, 2007 · Jan Swammerdam, known as the founder of the preformation theory based on his extensive research on insect development, was born on 12 February 1637 in Amsterdam, the Netherlands, to Baertje Jans Corvers and Jan Jacobszoon Swammerdam.
May 21, 2018 · Jan Swammerdam. The Dutch natural scientist Jan Swammerdam (1637-1680) was a founder of comparative anatomy and entomology and was very skillful in the art of microdissection. Jan Swammerdam was born on Feb. 12, 1637, in Amsterdam. His father, a prosperous apothecary, had collected a museum of curiosities.
Trained as a doctor in the prestigious new university of Leiden, Swammerdam was one of a group of highly talented students that included de Graaf (1641-1673), Stenson (1638-1686) and Ruysch (1638-1728), each of whom made a major contribution to science.
But he was rapidly proven wrong by a young Dutchman, Jan Swammerdam. Swammerdam's elegant experiments pioneered the frog nerve–muscle preparation and laid the foundation of our modern ...
