During an ice age, the polar regions are cold, there are large differences in temperature from the equator to the pole, and large, continental-size glaciers can cover enormous regions of the earth.

A strange cast of ferocious predators and giant herbivores lived here during the ice age. Graham Duggan Most archeologists agree that human beings reached North America 14,000 years ago ...

Video from Lake Michigan in the northern US shows ice balls and ice sheets covering ... looks at the meteorological phenomenon hitting North America's west coast. Dean Naujoks filmed the moment ...

During the Pleistocene Epoch, North America was home to a diverse array of megafauna—large animals that dominated the continent’s landscapes. These creatures, some of which are now extinct, played ...

Lake Erie’s surface ice has ballooned over the past week as frigid temperatures descended on the region The recent cold snap that descended on much of North America has dramatically increased ...

During the last ice age, massive continental ice sheets up to five km high covered much of North America and northern Europe (the Laurentide and Fennoscandian ice sheets, respectively).

The last ice age ended about 10,000 years ago ... When the temperatures drop, ice sheets spread from the Poles and cover much of North America and Europe, parts of Asia and South America, and ...

humans could not walk across the land bridge between Siberia and North America, a dry corridor that was exposed by low sea levels as the climate became colder toward the end of the last ice age ...