Fish that go in schools are seldom born in rivers; they are raised in the lakes, and this is how they behave: when the desire of spawning comes on them, they swim out to sea in schools, the males leading, and throwing out their milt, while the females come after and swallow and conceive from it.
Histories. Herodotus. ed. A.D. Godley. Cambridge. 1920-1925.
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