Paul Kammerer

Paul Kammerer (17 August 1880, in Vienna – 23 September 1926, in Puchberg am Schneeberg) was an Austrian biologist who studied evolutionary theory through the medium of investigation of the reproduction and development of amphibians. Although he is now known for advocating a form of Lamarckism, the theory that organisms may pass to their offspring characteristics acquired in their lifetime, meaning variation would be directed towards creating adaptations, he considered himself a Darwinian in the fashion of Ernst Haeckel. Provided by Wikipedia