News and opinion from the Editors of The Huffington Post's Science vertical.

Talk Nerdy To Me: How We Know This Never Happened

The Earth is 4.54 billion years old; 3.8 billion years ago, the very first life form came into existence; 225 million years ago, dinosaurs came on the scene; and man took his first steps in Africa 200,000 years ago. How do we know this to be true?

Science.

Watch the video/read the full transcript here.

#science  #carbon dating  #evolution  #dinosaurs  #talk nerdy to me  #huffpost science  #the huffington post  #cara santa maria  

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