The ghost catfish transforms from glassy to glam when white light passes through its mostly transparent body. Now, scientists know why. The fish’s iridescence comes from light bending as it travels ...

These ants’ transparent abdomens change to the color of their food after eating. Photo by Mohamed Babu/Solent News/Rex F/AP Images Not long ago, Dr. Mohamed Babu, of Mysore, South India, noticed ...

We now know how ghost catfish get their rainbow shine. These small fish, popular for home aquariums because of their near-complete transparency, get their iridescence from fibres in their muscles, ...