The Histories · 3.103

As to the form of the camel, I do not here describe it, since the Hellenes for whom I write are already acquainted with it, but I shall tell that which is not commonly known about it, which is this:—the camel has in the hind legs four thighs and four knees, and its organs of generation are between the hind legs, turned towards the tail.

Herodotus of Halicarnassus · trans. G. C. Macaulay, 1890
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