Ad: Which Embryonic Stage Are You In? T-Shirt
You might remember the saying "Ontogeny Recapitulates Phylogeny" that notes that in evolutionary history there is the tendency of a species repeating the development stages of its ancestors. Showcase wry biology humor with this embryonic gift tee that asks "Which Embryonic Stage Are You In?" Perfect gift for anyone who's just going through a phase or two! myTees
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