Willi Hennig

German biologist.

Born April 20th, 1913 in Dürrhennersdorf.

Died November 5th, 1976 at 63 years old in Ludwigsburg.

Occupations
biologist, entomologist, university teacher, writer, zoologist
Wikipedia

While I thought that I was learning how to live, I have been learning how to die. Leonardo da Vinci