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Article based on English Wikipedia

This article or parts of it were created based, in whole or in part, on this version of the English Wikipedia article. The complete history of the article can be found there.

Credit due[change source]

Credit Aristotle for his taxonomic works, recognising that whales weren't fish, that insects had blood, and so on. No need the details. Prime Contributer (talk) 15:36, 4 July 2008 (UTC)