There is comedy out this week titled Year One staring Michael Cera and Jack Black. Why were they cast for the role of playing primitive cave dwelling people? because they are jews and jews have primitive, devolved physical features as shown form the trailer clip below:

The typical jew facial expression is vacant, weak, wispy, sloping receded forehead, cheekbone broadening, curvature (face teds to be heart shaped rather than eraser shaped), and delicate chin. Also, at the corners of the lips there is very little space between the bottom of the jaw. The edges of the often bulbous lips almost seem to melt off of the face. In women the eyes are often seen melting to the side of the face or receded. The whole appearance is very repugnant.