Campers find out why ancestry and geography and natural selection are all important to determining skin color.
6/19/18 | 8m 43s
12/19/17 | 11m 29s
1/26/18 | 9m 35s
10/10/18 | 10m 39s
9/29/17 | 8m 15s
10/31/17 | 10m 25s
5/11/18 | 13m 27s
10/19/17 | 10m 25s
