that is proof of the metaphysical nature of evolution ...
transforming from one being into another
It's metamorphosis or development change which has nothing to do with the metaphysical which has been explained to you before. However, I did find there is a
supernatural belief of humans into animals. I can see you going off the deep end and believing this kind of stuff

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"Of Humans, Pigs, Fish, and Apes:
The Literary Motif of Human-Animal
Metamorphosis and its Multiple Functions
in Contemporary Fiction1
Marion Gymnich and Alexandre Segão Costa
[...] she would try
To stretch her arms, she had no arms to stretch.
Would she complain, a moo came from her throat,
A startling sound—her own voice frightened her.
[...]
Her tears rolled down; if only words would come,
She’d speak her name, tell all, implore their aid.
For words her hoof traced letters in the dust—
I, O—sad tidings of her body’s change.2
THE STORY OF THE BEAUTIFUL IO, whom Jupiter transforms intoa cow to hide his affair with her from his wife Juno and who, sheddingbitter tears, manages to reveal her true identity to her father by tracingher name in the ground with her hoof, is just one of many instances of human-animal transformation in Ovid’s Metamorphoses. The Metamorphoses, beyonddoubt part of the canon of Western literature, has inspired many authorsthroughout the centuries, and it still constitutes an interesting touchstone fora discussion of literary representations of human-animal transformation intexts written in the second half of the twentieth century. The frequent explicitintertextual references to Ovid in recent literary representations of metamor-phoses is evidence of the lasting impact of the Metamorphoseson Western lit-erature and culture."
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