The ice age, which came after the global flood, provided the perfect conditions for mankind to spread around the Earth. The cooler global temperature would’ve allowed people to pass through places like the Sahara Desert.
The ice age would’ve also lowered ocean levels, exposing land bridges allowing people to easily move around.
But those who settled North would’ve had a hard time growing crops in the cool climate, so they would’ve relied on big game. And they would’ve used the most powerful, practical shelter available—caves! Cavemen were not primitive brutes. They were our relatives dispersing around the earth during the ice age.
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This post originally appeared at https://answersingenesis.org/media/audio/answers-with-ken-ham/volume-156/man-and-ice-age/