Returning to previous forms is not quite impossible, seeing as fluctuations in genetics could be blamed. As an example, the whale is thought to have returned to the ocean after its initial emergence. So the evolution argument does not hold water here.

Speaking of water, that pic illustrates a problem I have with the backdrop: none of those islands appear to be Hyrule. In fact, I do not think that we have the right to assume that there were not oceans present in other games in the child timeline: claiming that oceans only came to Hyrule through the Flood is not very supportable, but tends towards fanfic. We do not even know where Hyrule is in relation to this backdrop, so we cannot even determine if it is land-locked or not.

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I blame my incoherence on stress and prescribed drugs. Nayru Award: Of mantequilla and they of the deceptive peanut its dog in Pleasuring is probably the cover.
The Malarchy: My Post-TP Fanfic Amphitheatre character:Penina Hargreaves