Savatri

Smells like April Fools. Raptor hand prints make it look like the dinos are the survivors and humans are the "dinos" in this case. You can go wild with swapping it around ... dinos keeping large groups of female humans for 'breeding' purposes. Maybe the squat fat looking humans are beasts of burden while tall lean humans are used for speedy mounts. Then you get into breeding so you get lean humans with thick muscular legs. Clearly the five minutes I spent thinking about this was far too long.