Fish Turn Out to Have Infrared Vision Abilitiy

10.11.2015

Experts at Washington University School of Medicine have found that some freshwater fish, including salmon, turn on supersight like heroes of science fiction film, when they find themselves in troubled waters.

Fish turn out to have infrared vision abilitiy

In poor visibility conditions a Cyp27c1 enzyme in the eyes of fish converts vitamin A1 into vitamin A2, while the sensitivity of the photoreceptor is switched in the wavelength range. Some reptiles, such as bull-frog, may also see in infrared light may, if necessary. Scientists believe that the enzyme Cyp27c1 got its switching functions millions of years ago. Analogous genes controlling this enzyme were found in human body, but they are not active. The results may find application in the treatment of neurological diseases and optogenetic developments.