The last glacial stage ended about 14,000 yr ago. At that time, the ice front in North America extended down to roughly the modern drainages of the Ohio and Missouri River. South of the ice mass, it was considerably cooler, with evidence of more northern forests throughout Georgia. Coal seams, deposits of ancient tropical swamps, buried beneath the Antarctic ice cap. Old lake and ocean shores that are now stranded well above the present lake or sea level.
Beach ridges on the mountains that surround modern Great Salt Lake.
Fossils of hippopotamus, critters that live in rivers of the tropical savanna, found near London, England. B. Pollen analysis 1. The male sex cell of plants. Since they can't move, they cannot select mates. Instead, they have sex by pollen dispersal.