Ocean acidity damages sharks' teeth, study finds

Scientists found that as the ocean gets more acidic, shark teeth become weaker and more damaged.

They did an experiment where they put shark teeth in water with different acidity levels.

The teeth in more acidic water got cracks, holes, and other damage.

This could make it harder for sharks to hunt and eat.

Some experts think sharks might be able to replace their teeth fast enough, but others are worried about the long-term effects on sharks and other ocean animals.

The study shows that even big predators like sharks can be affected by changes in the ocean's chemistry.