This is an automated archive made by the Lemmit Bot.

The original was posted on /r/biology by /u/lumendrake01 on 2025-10-20 17:14:59+00:00.

In a way, the opposite of neoteny. It’s the same general concept as embryonic development showcasing the transition from a simpler and apparently more basal/primitive anatomy/biology towards a more derived and complex one, but I’m aware that this somehow “mirroring” evolution is no longer seen as factual. Still, are there any living/fossil examples where we see post-birth ontogeny sort of paralleling evolutionary changes in the adult individuals? And does this process have a name?