Konrad Lorenz
Konrad Zacharias Lorenz (Austrian German: [ˈkɔnraːd tsaxaˈriːas ˈloːrɛnts] ; 7 November 1903 – 27 February 1989) was an Austrian zoologist, ethologist, and ornithologist. He shared the 1973 Nobel Prize in Physiology or Medicine with Nikolaas Tinbergen and Karl von Frisch.