Aristoteles
(384 - 322 v. Chr)

Blaise
Pascal
(1623
- 1662)

Carl von Linne
(1707-78)

Jean Baptiste de Monet Chevalier de Lamarck
(1744 -
1829)

Charles Robert Darwin
(1809 - 1882)

Gregor Mendel
(1822 - 84)

Alfred Russel Wallace
(1823 - 1913)

Thomas Henry Huxley
(1825 – 1895)

Ernst Haeckel
(1834-1919)