Isidore Geoffroy Saint-Hilaire
French scientist
Died when: 55 years 329 days (670 months)Star Sign: Sagittarius

Isidore Geoffroy Saint-Hilaire (16 December 1805 – 10 November 1861) was a French zoologist and an authority on deviation from normal structure.In 1854 he coined the term éthologie (ethology).
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