These gorgeous, long-tailed marine creatures—formerly known as Siamese fighting fish—have been famous for centuries for their aggressive nature, which breeders have exploited in order to fight them, ...

Some of the world’s most spectacularly colorful animals are amphibians — especially frogs and salamanders. Many of these colorful animals are toxic or have developed some sort of chemical defense, and ...

A recent study finds that color vision evolved in animals more than 100 million years before the emergence of colorful fruits and flowers. And there has been a dramatic explosion of color signals in ...

Scientists found a colorful animal with a “large” mouth in a river of Myanmar and discovered a new species, a study said. Photo shows a representative area of Mogaung. Screengrab from YouTube video ...