What is this picture?

Question

What is shown in this image?

Accepted Answer

moth wing scales (macro). # Moth Wing Scales

Moth wing scales are actually hollow and filled with air, which is why they're so incredibly light and iridescent—but here's the wild part: they're also covered in microscopic ridges and grooves that act like a natural anti-reflective coating, making moths nearly invisible to the infrared sensors that some predatory insects use to hunt them.

Answer: moth wing scales (macro)