Investigating herbivory and plant defense strategies using herbarium specimens. Credit: Nature Reviews Biodiversity (2025). DOI: 10.1038/s44358-025-00071-8 Herbaria, or "museums for plants," house millions of samples collected over centuries. Stanford biologist Barnabas Daru shares how modern technology can unlock this treasure trove, providing scientists with vital insights into plants and the ecosystems they support. A single dried flower pressed flat on