Aristotle's Classification Scheme

1112 Words Feb 3rd, 2018 4 Pages
In line with this, he sub-divided animals with blood into live-bearing; humans and other mammals, and egg-bearing; birds and fish. Additionally, animals without blood were grouped as insects, shelled and non-shelled crustacean and testacea.
In this classification scheme, creatures were organized in a graded scale of perfection from plants to humans. Aristotle's system was structured in eleven grades, with the arrangement done according to the extent to which the organisms recorded potentiality which was depicted in their form at birth. Animals in the upper groups gave rise to warm and wet creatures while the lower ones bore cold, dry, and thick eggs. Moreover, Aristotle ascertained that a creature's level of perfection was reflected in its form, but not predetermined by that form.
Aristotle emphasized on the various types of souls organisms possessed by proclaiming that plants have vegetative souls responsible for reproduction and growth; animals a vegetative and sensitive soul for movement and sensation; while humans have vegetative, sensitive, and rational souls essential for thought and reflection.

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