History of Animals

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History of Animals (Greek: Περὶ τὰ Ζῷα Ἱστορίαι "Inquiries on Animals"; Latin: Historia Animālium "History of Animals") is a zoological natural history text by Aristotle.


Aristotle spent many years at Plato's academy in Athens. Mosaic, 1st century, Pompeii

Aristotle (384–322 BC) studied at Plato's Academy in Athens, remaining there for some 17 years. Like Plato, he sought universals in his philosophy, but unlike Plato he backed up his views with detailed observation, notably of the natural history of the island of Lesbos and the marine life in the seas around it. This study made him the earliest natural historian whose written work survives. No similarly detailed work on zoology was attempted until the sixteenth century; accordingly Aristotle remained highly influential for some two thousand years. His writings on zoology form about a quarter of his surviving work.[1]


In the History of Animals, Aristotle sets out to investigate the existing facts (Greek "hoti", what), prior to establishing their causes (Greek "dioti", why).[1][2] The book is thus a defence of his method of investigating zoology. Aristotle investigates four types of differences between animals: differences in particular body parts (Books I to IV); differences in ways of life and types of activity (Books V, VI, VII and IX); and differences in specific characters (Book VIII).[1]

To illustrate the philosophical method, consider one grouping of many kinds of animal, 'birds': all members of this group possess the same distinguishing features—feathers, wings, beaks, and two bony legs. This is an instance of a universal: if something is a bird, it will have feathers and wings; if something has feathers and wings, that also implies it is a bird, so the reasoning here is bidirectional. On the other hand, some animals that have red blood have lungs; other red-blooded animals (such as fish) have gills. Here one can rightly conclude that if something has lungs, it has red blood; but Aristotle is careful not to imply that all red-blooded animals have lungs, so the reasoning here is not bidirectional.[1]


Book I The grouping of animals and the parts of the human body.

Book II The different parts of red-blooded animals.

Book III The internal organs, including generative system, veins, sinews, bone etc.

Book IV Animals without blood (non-vertebrates) – cephalopods, crustaceans, etc. In chapter 8, the sense organs of all animals.

Book V Reproduction, spontaneous and sexual of non-vertebrates.

Book VI Reproduction of birds, fish and quadrupeds.

Book VII Reproduction of man.

Book VIII The character and habits of animals, food, migration, health, diseases and the influence of climate.

Book IX The relations of animals to each other, means of procuring food.

A Book X is included in some versions, dealing with the causes of barrenness in women, but is generally regarded as not being by Aristotle. In the preface to his translation, D'Arcy Wentworth Thompson calls it "spurious beyond question".[3]


The Arabic translation comprises treatises 1–10 of the Kitāb al-Hayawān (The Book of Animals). It was known to the Arab philosopher Al-Kindī (d. 850) and was commented on by Avicenna.

English translations were made by Richard Cresswell in 1862[4] and by the zoologist D'Arcy Wentworth Thompson in 1910.[5]


The comparative anatomist Richard Owen said in 1837 that "Zoological Science sprang from [Aristotle's] labours, we may almost say, like Minerva from the Head of Jove, in a state of noble and splendid maturity".[6]

Ben Waggoner of the University of California Museum of Paleontology wrote that

Though Aristotle's work in zoology was not without errors, it was the grandest biological synthesis of the time, and remained the ultimate authority for many centuries after his death. His observations on the anatomy of octopus, cuttlefish, crustaceans, and many other marine invertebrates are remarkably accurate, and could only have been made from first-hand experience with dissection. Aristotle described the embryological development of a chick; he distinguished whales and dolphins from fish; he described the chambered stomachs of ruminants and the social organization of bees; he noticed that some sharks give birth to live young — his books on animals are filled with such observations, some of which were not confirmed until many centuries later.[7]

See also[edit]


  1. ^ a b c d Lennox, James (27 July 2011). "Aristotle's Biology". Stanford Encyclopedia of Philosophy. Stanford University. Retrieved 28 November 2014. 
  2. ^ History of Animals, I, 6.
  3. ^ Thompson, 1910, page iv
  4. ^ Cresswell, Richard. A History of Animals. London: Henry G. Bohn, 1862.
  5. ^ Thompson, D'Arcy Wentworth. A History of Animals. Oxford: Clarendon Press, 1910.
  6. ^ Owen, Richard (1992). Sloan, Phillip Reid, ed. The Hunterian Lectures in Comparative Anatomy (May and June 1837). Chicago: University of Chicago Press. p. 91. 
  7. ^ Waggoner, Ben (9 June 1996). "Aristotle (384-322 B.C.E.)". University of California Museum of Paleontology. Retrieved 27 November 2014. 

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