Ornaments v. Cave paintings 1. Oldest from Le Chauvet France, 32 kya How did modern human behavior evolve? A. By 40 kya, humans in Europe and Africa display “new” forms of behavior (but were they all really completely new?) B. But anatomically modern humans appeared about 130-100 kya in Africa c. What accounts for the gap? D. Competing hypotheses about the origins of modern human behavior i. Product of sudden change in cognitive ability 1. Development of language and symbolic capacities accelerated rate of behavioral change 2. “Human revolution” ii.