Long-standing Indigenous practice of adding shells to sand helps young clams withstand ocean acidification

New research from the University of California, Davis, reveals why adding crushed shells to beach sand helps protect shell-making animals—such as clams, oysters and mussels—from the detrimental effects of ocean acidification.

Source: [Phys.org](https://phys.org/news/2026-10-indigenous-adding-shells-sand-young.html)