You don't just magically flip some evolutionary switch somewhere and transmute a quadruped into an upright-walking bipedal human.
— Donald Johanson
The gods are made of marble Deep inside a museum
A quadruped monster beckons me to approach
("Outcries") — Helene Baronne D'Oettingen
Man is descended from a hairy, tailed quadruped, probably arboreal in its habits. — Charles Darwin
