Ernst Heinrich Philipp August Haeckel,1834-1919, a German biologist, naturalist, philosopher, physician, professor, and artist,

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Ernst Heinrich Philipp August Haeckel,1834-1919, a German biologist, naturalist, philosopher, physician, professor, and artist, Ernst Heinrich Philipp August Haeckel,1834-1919, ein deutscher Zoologe, Philosoph und Freidenker

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