Shark’s skin adds forward boost | Science News

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Shark’s skin adds forward boost

A covering of sharp scales helps propel the creatures

By
9:29am, February 10, 2012

A shark’s birthday suit not only fits perfectly, but is very fashion forward. Tiny teethlike ridges covering sharks’ skin appear to give the fish a push forward in water, a new study finds.

These ridges, or denticles, increase swimming speed and appeared to improve thrust, Harvard University researchers report in the March 1 Journal of Experimental Biology. Meanwhile, similar work with samples of Speedo fabric, designed to look like sharkskin, did not show a consistent improvement in swimming performance.

Much like how a golf ball is able to smoothly soar

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