Aristotle was a Greek philosopher born in Stagira, Greece in 384 BC.
Aristotle was a careful and thorough observer who was fascinated by the task of classifying
animal species and arranging them into hierarchies. He believed animals should be classified in a “Chain of Being” which consisted of God, man, mammals, oviparous with perfect eggs (birds), oviparous with non-perfect eggs (fish), insects, plants, and non-living matter. He considered each link in the chain as a species. He made extensive taxonomic studies of more than 500
animal species, dissecting many of them. He used the same principl
