Valentin Haecker

Ferdinand Carl Valentin Haecker (15 September 1864 – 19 December 1927) was a German zoologist, reader at Freiburg University from 1892. In 1900, he became professor at the University of Applied Sciences Stuttgart and in 1909 at Martin Luther University of Halle-Wittenberg. He was president of the Deutsche Zoologische Gesellschaft from 1922. He died unexpectedly from a stroke.

Haecker's contributions span the fields of ornithology,^[1] plankton (Radiolaria)^[2] cell biology,^[3] developmental physiology, genetics^[4] (where he established the subfield of phenogenetics^[5]). He also published a historical treatise on Goethe's work on morphology.^[6]