Christian | Hans Christian Andersen | Christian Dior | Ernst & Young | Christian music | Christian cross | Christian Brothers | Max Ernst | Congregation of Christian Brothers | Christian IV of Denmark | Contemporary Christian music | Christian Slater | Christian rock | Christian metal | Christian Broadcasting Network | The Christian Science Monitor | Southern Christian Leadership Conference | Institute of the Brothers of the Christian Schools | Ernst Haeckel | Christian Church | Union of Christian and Centre Democrats | Christian V of Denmark | Christian theology | Christian Marclay | Christian Lindberg | Johann Christian Bach | Christian Kane | International Christian University | Fellowship of Christian Athletes | Ernst Mayr |
He studied botany and zoology at the University of Jena under Christian Ernst Stahl (1848–1919) and Ernst Haeckel (1834–1919), and continued his studies at the University of Munich under Ludwig Radlkofer (1829–1927) and Richard Hertwig (1850–1937).