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Ernst Haeckel's Biogenetic Law (1866)
By: M. Elizabeth Barnes
| Published: May 03, 2014
The biogenetic law is a theory of development and evolution proposed by Ernst Haeckel in Germany in the 1860s. It is one of several recapitulation…
EvolutionDevelopmental BiologyEmbryologyAnatomy, Comparative
Johann Friedrich Blumenbach (1752-1840)
By: Kate MacCord
| Published: Jan 22, 2014
In eighteenth century Germany, Johann Friedrich Blumenbach studied how individuals within a species vary, and to explain such variations, he proposed…
AnthropologyAnatomy, ComparativeVariation (Biology)EmbryosDevelopmental Biology