A new study from MIT has found a unique and potentially groundbreaking mechanism of photosensitivity in the lab-favorite roundworm c. elegans, as the simple organisms have been shown to detect light by tasting it. What does light taste like? Well, like bleach apparently. C. elegans tastes the light indirectly, by detecting the hydrogen peroxide and other reactive substances that often results when fragile molecules are damaged by light. This has implications not just for vision, but for our understanding of taste, overall.