On the left is how a newborn perceives his mother's face says psychologist Frederck Maimstrom. On the right is the most familiar depiction of an alien.
In fact, it's how most self-described abductees describe their alien kidnappers. It may all be due to our primitive facial recognition template says Maimstrom. You can read more about Your Mama Looks Like E.T. in the Washington Post. Or read Maimstrom's article in Skeptic Magazine called Close Encounters of the Facial Kind.
HT Bookofjoe