We investigated six Robertsonian translocations, including two cases of rob(13q14q), one of rob(14q21q), one of rob(13q22q), and two of rob(21q21q), by means of fluorescencein situ hybridization (FISH ...

When fish suddenly change color, there are little photoreceptors embedded deep within their skin keeping watch to ensure the color is just right, according to new research. For the first time, ...

Add Yahoo as a preferred source to see more of our stories on Google. A male celebes medaka with black markings starting to appear towards the end of its tail. Dominant males of an Indonesian species ...

Understanding Fish Coloration Fish colors are produced through specialized cells called chromatophores. These cells contain ...

New research reveals signs of highly sensitive color vision in fish that live in the abyss beyond sunlight's reach An international team of researchers discovered a previously unknown visual system ...

In the dim light of dusk, the world appears gray. That's because we, like most vertebrates, have just on type of rod opsin, the light-sensitive pigment in our eyes that lets us see in low light.

Similarities in how different organisms look can indicate a close evolutionary relationship. Conversely, great differences in appearance can suggest a very distant relationship, as in many adult ...