This video shows the undulatory swimming style of four different types of fish that look nothing alike but evolved with similar types of movements. Computer animation from Northwestern University ... more 
This video shows the undulatory swimming style of four different types of fish that look nothing alike but evolved with similar types of movements. Computer animation from Northwestern University shows the black ghost knifefish's movements, followed by images of robots inspired by the fish. less 
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Mon, May 4, 2015 4:38 PM EDT