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 ...

From red to white to orange to blue, fish flesh can land almost anywhere on the color spectrum. What's behind this huge variation? A lot of things — from genetics to bile pigments. And parsing the ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Far beneath the ...

If you ever travel to the Maldives, you might be able to see a rainbow without any rain. Meet the newly discovered rainbow-colored fish named the rose-veiled fairy wrasse in the Maldives' "twilight ...

First introduced in The Rainbow Fish in 1992, the title character, who finds happiness when he learns to share his iridescent scales, endeared himself to children and adults alike. Written and ...