Relating to Ernst Heinrich Haeckel, a 19th-century German biologist, or his ideas about evolution and biology.
Named after Ernst Haeckel (1834-1919) with the '-ian' suffix meaning 'of or relating to.' Haeckel was influential in promoting Darwin's evolution theory in Germany.
Haeckel's 'biogenetic law' claimed that individual development repeats evolution, and while the strict version was wrong, his dramatic ideas made Darwin's evolution famous across Europe and inspired entire movements.
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