The movie “Your Inner Fish” featuring Neil Shubin gave many visual examples as to how humans evolved from fish. Fish are aquatic creatures that swim in the ocean using fins, and breathe with a very complicated mechanism called gills. Shubin talked about a connection between these creatures and human beings. Its called Tiktaalik. Tiktaalik was the stepping fish between ancient aquatic life and humans. It could breathe in land and water, had a flexible neck, and could also… do a push up? 
How is Shubin sure it can do a push up? Fossil records and fossils found by Shubin indicate that Tiktaalik had a skeletal structure capable of exiting the water, and also had strong wrists containing many digits, similar to our wrists. Their wrists were strong enough to support its own weight, and because of that it was technically able to do a push up.
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