"Horses and donkeys can also reproduce.
The result is a sterile creature called a mule/hinney.
Nature allows that yet the result is incapable of creating life.
Why would nature allow that?"
-I knew this was coming...what can we say? The mule is an anomaly I suppose. However, while nature allows the horse and donkey to make a mule, nature ends it there; this is not the case with humans.
As for the Basque people, it's interesting, but I'm not sure what that proves, if anything at all.
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