If we didn’t evolve, we would all be walking around on four legs. We also might have fur all over our body.
THIS IS COOL. I WANT TO LEARN SOMETHING ELSE, TOO!
Video via – Life Noggin
Further Readings And References @ LifeScience, The Conversation, Scientific American, and The Smithsonian Institute
ScienceSwitch 
I like the graphics in the video, it made it more fun to watch. Also, I liked the comparison between bipedalism and quadpedalism. I hope humans are still around in a million years ago, but not sure what they will look like. Humans probably could have survived 2.5 million years ago when it was colder and drier. We could have adjusted to different weather conditions like we do when we go to different climates.
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That’s cool
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