Loading AI tools
Dutch biologist and ethologist From Wikipedia, the free encyclopedia
Johan(nes) Abraham Bierens de Haan (March 17, 1883 – June 13, 1958) was a Dutch biologist and ethologist. He was a founder of the study of animal psychology.[1]
Seamless Wikipedia browsing. On steroids.
Every time you click a link to Wikipedia, Wiktionary or Wikiquote in your browser's search results, it will show the modern Wikiwand interface.
Wikiwand extension is a five stars, simple, with minimum permission required to keep your browsing private, safe and transparent.