Dinosaur Discovery on MSN
The prehistoric timeline revealing how North America became a cradle of ancient giants
This video presents a comprehensive timeline of North America’s prehistoric creatures, from early ocean dwellers to the ...
History Snob on MSN
What was Pangaea? Flashback to when Earth was one supercontinent
This supercontinent formed hundreds of millions of years ago and helps explain why distant places share similar fossils, why ...
For the first time, scientists have mapped vast, continent-scale river drainage systems on Mars — ancient networks that may ...
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