The ocean is getting more acidic — and harming sharks’ teeth

While many people are scared of sharks thanks to their rows of razor-sharp teeth, the changing waters might be rendering the creatures from “Jaws” a little less fearsome. Increasing acidity in the world’s oceans is changing the structure of sharks’ teeth and making them weaker, according to a study published last year, and scientists are worried this could affect the greater marine ecosystem.

What did the study find?

The study was helmed by a group of German scientists examining the effects of ocean acidity.