Ice Age

New Evidence of Early Settlement in the Americas May Rewrite History

New Evidence of Early Settlement May Rewrite History

Stone tools discovered in a cave from central Mexico challenge the mainstream belief of when the first humans arrived in the Americas about 15,000 years ago. The lack of genetic evidence may possibly mean that the older peoples had been a 'lost group' and are not part of the modern gene pool.

Earth Has Been Through Not One But Many Ice Ages

Ice age is a period where the majority of the Earth's water freezes into ice by recurring glacial expansion. An ice age lasts for millions of years and till now earth has experienced 5 major Ice ages.
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