(Jon of the Clue Crew shows a map on a screen) During the Pleistocene Epoch, the ocean receded, and Beringia emerged, an example of this 2-word type of isthmus, allowing humans to come from Asia to America,
[DOC] [TLE] 13483 art 12738 rock 6611 sites 6512 more 5811 one 5629 such ... [PAR] ... 5067 between 4502 australia 4478 aboriginal 4312 figure 4260 two 3974 
people .... came 381 grains 381 expected 381 drawings 381 basic 381 artist 380 
words ..... regionally 76 raises 76 protective 76 produces 76 prep 76 mesa 76 
maps 76 .... 52 cross-section 52 crew 52 continuum 52 colonialism 52 coarse 52 
clues... [DOC] [TLE] the , .