Background
He was the son of historian Harry Bresslau.
university professor Zoologist
He was the son of historian Harry Bresslau.
Following studies in medicine and natural sciences, he obtained his Doctor of Philosophy from the University of Strasbourg in 1902.
In 1913-1914 he conducted zoological research in central and north-eastern Brazil, later being named director of zoology at the Georg-Speyer-Haus in Frankfurt am Main (1919). From 1925 to 1933, he was a professor at the University of Cologne, where he was instrumental in the founding of its institute of zoology. In 1934 he returned to Brazil as director of the zoological institute at the University of São Paulo.
His primary areas of research involved the evolutionary development of flatworms, investigations of infusoria and the development of mammary organs in marsupials.
His name is associated with Bachia bresslaui, sometimes referred to as "Bresslau"s bachia", a species of Brazilian lizard described by Afrânio Pompílio Gastos do Amaral in 1935.
