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You can see right through this little aquarium fish from Thailand: Its skin is almost completely transparent. But when the light hits it just right, its body flickers with shimmering rainbow colors.

The rose-veiled fairy wrasse is the first Maldivian fish to be described by a local scientist. Pictured: a male rose-veiled fairy wrasse Yi-Kai Tea/Californa Academy of Sciences Deep in the waters off ...

Scientists have uncovered that fish biofluorescence a captivating ability to glow in vivid colors has ancient roots stretching back over 100 million years. This trait evolved independently in reef ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. Bignose unicornfish (Naso vlamingii) are an Indo-Pacific reef species known for their blue markings. They can quickly hide these ...