The New Aristotle Reader, edited by J. L. Ackrill. Princeton University Press, Princeton: 1987

On the Generation of Animals 789a3

"The act of sucking in itself contributes nothing to the formation of the teeth, but the heat of the milk makes them appear more quickly. A proof of this is that even in suckling animals those young which enjoy hotter milk grow their teeth quicker, heat being conducive to growth."