What makes the Galápagos tomatoes particularly notable is not just that they produce alkaloids, but that they are generating types not seen in modern tomatoes...The team examined more than 30 tomato specimens collected from various locations across the islands. They discovered that tomatoes growing on the eastern islands produced alkaloids similar to those found in today's cultivated varieties. However, tomatoes from the western islands were synthesizing a different form of the molecule—one that matched the chemical profile of ancient eggplant relatives.This distinction is due to stereochemistry, which refers to the spatial arrangement of atoms within a molecule. Two compounds can...