Geological Evidence and Age of the Sphinx

This chapter discusses the geological evidence that suggests the Sphinx and its surrounding area in Egypt received heavy rainfall thousands of years ago. The speaker mentions a geologist from Boston University named Robert Shock who found evidence of water erosion on the Sphinx, indicating that it was carved before a time when rainfall was present in the Nile Valley. The speaker also speculates on the age of the Sphinx and its initial design featuring the head of a lion, pointing towards the constellation Leo.