Acidifying seas erode shark teeth

A Frontiers in Marine Science study led by Maximilian Baum (Heinrich Heine University Düsseldorf) finds that lower pH levels associated with ocean acidification can physically crumble shark teeth. Because sharks rely on rapid tooth replacement and sharp enamel to feed, pH‑driven erosion could reduce hunting success and resilience. — It shifts climate‑impact talk from corals and shellfish to apex predators’ basic feeding tools, signaling potential knock‑on effects for ecosystems and fisheries management.