Theodor Eimer

Theodor Eimer
Born	(1843-02-22)22 February 1843 Stäfa, canton of Zürich, Switzerland
Died	29 May 1898(1898-05-29) (aged 55) Tübingen, Germany
Nationality	German
Education	University of Tübingen, University of Freiburg, University of Würzburg (D.Phil.)
Known for	Orthogenesis
Spouse	Anna Lutteroth
Parent	Albertine Pfenniger (mother)
Scientific career
Fields	Zoology
Institutions	University of Würzburg, University of Tübingen

Gustav Heinrich Theodor Eimer (22 February 1843 – 29 May 1898) was a German zoologist. He was a popularizer of orthogenesis, a form of directed evolution through mutations that made use of Lamarckian principles.