Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain
the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in
Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles
and JavaScript.
Bio-inspired by the nano-architectures of iridescent Morpho butterfly scales, scientists have demonstrated a highly sensitive infrared detector that can efficiently upconvert mid-infrared radiation to visible iridescence changes.
Blue butterflies feel the heat