We suspected that tooth-like scales help sharks slip more easily through water, and now we know the effect is most pronounced when the sharks accelerate
Source:
https://www.newscientist.com/article/2265817-sharks-tooth-like-scales-help-to-boost-their-acceleration-rates/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home