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Otto Karl Ladislaus zur Strassen (9 May 1869 in Berlin – 21 April 1961 in Oberstedten) was a German zoologist. An advocate of Darwinism, his primary focus was concerned with biological morphology and developmental mechanics.〔(Google Books ) Schmidt - Theyer by K. G. Saur Verlag GmbH & Company.〕 He studied natural sciences at the Universities of Leipzig and Freiburg, obtaining his doctorate in 1892 at Leipzig with a dissertation on ''Bradynema rigidum''. After graduation, he furthered his education in Naples and in Russia. In 1901 he became an associate professor of specialized zoology at Leipzig, later working as a full professor of zoology at the University of Frankfurt am Main (1914–1935). In 1922/23 he served as university rector.〔(Catalogus professorum lipsiensium ) biographical sketch〕 In 1898/99 he took part in the first German ''Tiefsee-Expedition'' (deep-sea expedition) aboard the ''Valdivia''. From 1909 to 1934, he was director of the Senckenberg Museum in Frankfurt am Main.〔 == Written works == Zur Strassen was editor of "Brehms Tierleben" (completely revised 4th edition, 1911–1918). The following are a list of some of his noteworthy written efforts. * ''Embryonalentwicklung der Ascaris megalocephala'', 1896 – Embryonic development of ''Ascaris megalocephala''. * ''Ueber die Mechanik der Epithelbildung'', 1903 – On the mechanics of epithelialization. * ''Anthraconema, eine neue Gattung freilebender Nematoden'', 1904 – ''Anthraconema'', a new genus of free-living nematode. * ''Die Geschichte der Riesen von Ascaris megalocephala als Grundlage zu einer Entwicklungsmechanik dieser Spezies'', Stuttgart 1906 – History on the gigantism of ''Ascaris megalocephala'' as a basis for developmental mechanics of the species. * "Animal behavior and development", (published in English, 1909).〔(Google Search ) (published works)〕 * ''Plastisch wirkende Augenflecke und die "Geschlechtliche Zuchtwahl"'', Jena 1935 – Plastic-looking eye spots and "sexual selection". * ''Neue Beiträge zur Entwicklungsmechanik der Nematoden'', Stuttgart 1959 – New contributions towards the developmental mechanics of nematodes.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Otto zur Strassen」の詳細全文を読む スポンサード リンク
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