Evolutionary developmental biology

heterochrony

It is imperative for the students to realise that there is no such thing as a relatable aspect in the field of evolutionary biology, however it is not uncommon for them to deny that such a bond can be made when it concerns the recapitulation theory. When speaking of the developmental aspect of evolutionary biology you are discussing a whole other aspect of the phenomena thus you can not safely unconclude the discourse of such a comparison but neither can you define it.

I hope this was helpful.

Developmental homology is recognized in embryos. Two different organisms can have a common embryonic trait, say gill pouches or a tail, but in some of those organisms those gills and tails are lost. Gills pouches and tails are vestigial traits in humans, cats, chickens, etc. These organisms share genetic homologies, but are structurally different.

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