Parts of Animals

This article may be confusing or unclear to readers. Please help clarify the article. There might be a discussion about this on the talk page. (September 2021) (Learn how and when to remove this message)

Parts of Animals (or On the Parts of Animals; Greek Περὶ ζῴων μορίων; Latin De Partibus Animalium) is one of Aristotle's major texts on biology. It was written around 350 BC. The whole work is roughly a study in animal anatomy and physiology; it aims to provide a scientific understanding of the parts (organs, tissues, fluids, etc.) of animals and asks whether these parts were designed or arose by chance.