If us humans were supposed to have evolved from primates, apes etc how come they still exist today? If something "evolves" all previous is superceded and the new replaces? Also why is no skeletal evidence seldom found to show a creature's evolution? You have one type of creature, and then another type of skeletal evidence found. A scientist would say "now this creature has evolved from that" but not much skeletal evidence is found to show the gradual evolution stages, as in a skeleton with legs from when they were 1 foot tall to being 5 foot tall.