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Here's Why this Video of a 'Missing Arm Muscle' is Going Viral...

Our bodies are so odd, so freaky and just so amazing!

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In case you've come across this (above) graphic anywhere on the Internet and freaked out because you didn't/did have that muscle, then calm down!

This 'missing muscle' phenomenon is a part of a 'Proof of Evolution' video shared by Vox, highlighting the changes our bodies have gone through because of evolution.

It's pretty incredible and oddly fascinating, take a look:

[facebook ]https://www.facebook.com/Vox/videos/494982027356071/[/facebook]

Amazing, right?