You’ve never seen amphibians in this light before. Like, literally, this specific azure light. Today in the journal Scientific Reports, researchers for the first time show that amphibians glow if you throw blue light on them. The tiger salamander suddenly pops with brilliant green spots. Cranwell's horned frog is striped in a nuclear glow. Even the marbled salamander’s tiny toe bones fluoresce brightly—oh, and as does its cloaca, perhaps as a kind of sexual display.

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