Talking about evolution today, and the basis of life in real science and science fiction. Did you know the first whale lived on land and walked around on four legs? Or that scientists have coaxed bacteria into building bonds between silicon and carbon, suggesting that silicon-based life forms might somehow, somewhere naturally evolve.

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Want more about Pakicetus? Try these links:
https://www.nyit.edu/medicine/pakicetus_spp/
https://www.pbs.org/video/walking-whale-ancestor-mcwibo/

Organo-silicon compounding bacteria:
https://www.nbcnews.com/mach/science/silicon-based-life-may-be-more-just-science-fiction-n748266