This exhibition builds upon a previous thermal imaging collaboration between Paignton Zoo, Plymouth University, the Butterfly and Otter Sanctuary at Buckfastleigh Devon, and two keen excellent local photographers, Ray and Jean Wiltshire, which has been viewed by over 80,000 people across the South West of England so far.It has been put together by Dr Chris Lavers, Head of Sensors and Telecommunications at Plymouth University (although he's based in Devonport).
I am particularly taken by some fascinating shots showing 'blood' flow in butterfly wings. (It's not actually blood ... it's hemolymph fluid.) If you're in the south-west of England you'll know @Bristol but otherwise, here's the web site.
That reminds me of the nature of colour in butterfly wings. It's not pigment: most of the colours are caused by diffraction patterns due to the minute scales on the wings.
[Later that same day] Web page for the exhibition