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Looking for a solution to this problem, Cajal turned to embryology—also known as ontogeny—which he had first read about in a college textbook.

“Here phylogeny closely replicates ontogeny” — why yes, of course it does, and a “prolegomenon”? By all means, make mine a large one, no ice.

Martin starts rambling off a list of words: thaumatology, ontology, eschatology, epistemology, phenomenology, teleology, etiology, ontogeny.

Are there any biologists out there who can give us an idea how these environmental triggers for gene expression and suppression might affect development were they to occur during ontogeny?

Distinct routes of lineage development reshape the human blood hierarchy across ontogeny.