Why are most animal faces eyes at the top, nose in the middle, and mouth at the bottom? How are they all so similar?
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> How are they all so similar?
They all are related to each other.
All animals, in fact all living creatures so far as we can tell, share a common ancestor. All animals came from the same ancestor creature so sharing the same kind of body plan makes sense. Of course not *all* animals have the same kind of facial structure you describe, or even a face at all (starfish for example), but if you are wondering why a squirrel and a cow have the same facial structure it is because their general body plan is inherited from the same kind of creature long ago.
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