What If on MSN
The entire history of human evolution explained
Life on Earth began in a way that still boggles the mind. Around 4.5 billion years ago, a chemical process called abiogenesis occurred, where life emerged from non-life. Imagine a hot, watery mix of ...
The five-part series premieres Wednesday, September 17, at 9pm ET/8C on PBS, and will also be available for streaming at pbs.org/nova, NOVA on YouTube, and the PBS ...
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