It is further supposed that as the life-history lengthens at one end by the addition of new adult phases, it is shortened at the other by the abbreviation of embryonic development and by the absorption of some of the early larval stages into the embryonic period; but on the whole the lengthening process has exceeded that of shortening, so that the whole life-history has, with the progress of evolution, become longer and more complicated.英文原著 · 《Darwin and Modern Science》
But a deeper reason than this has been assigned for the importance of embryology in classification. It has been asserted, and is implied by Darwin in the passage quoted, that the ancestral history is repeated in a condensed form in the embryonic, and that a study of the latter enables us to form a picture of the stages of structure through which the organism has passed in its evolution. It enables us on this view to reconstruct the pedigrees of animals and so to form a genealogical tree which shall be the true expression of their natural relations.英文原著 · 《Darwin and Modern Science》
The extinct forms of life are very similar to those now existing and there is nothing specially embryonic about them. So that the facts, as we know them, lend no support to theory.英文原著 · 《Darwin and Modern Science》
"In other words," said the Judge, "we have discovered for the first time in our embryonic but progressive little city the inconveniences of the absence of adolescence. The season of the year having approximately arrived during which it is a custom to bestow frivolous but often appreciated gifts upon the young and tender--"英文原著 · 《Heart of the West》
The mucous tissue, as Virchow calls it, common in embryonic structures, seen in the vitreous humor of the adult.英文原著 · 《Medical Essays》
There is no progression from a lower to a higher type, but merely a more or less complete evolution of one type." Huxley seems to use the term anamorphism in a sense differing from that of some writers. Thus in Jourdan's "Dictionnaire des Termes Usites dans les Sciences Naturelles," 1834, it is defined as the production of an atypical form either by arrest or excess of development.), I should have thought that the archetype in imagination was always in some degree embryonic, and therefore capable [of] and generally undergoing further development.英文原著 · 《More Letters of Charles Darwin Volume I》
Well, considering our looming debts, and the embryonic state of our network,美剧 · 《Sillicon Valley》