A covering of sharp scales helps propel the creatures
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