Tübingen University biologists show marine fish use red
biofluorescence to communicate
The ocean is blue because red light is swiftly absorbed by
the water. That’s why even a few meters below the surface, the sea and its
creatures appear a dull blue color. Evolutionary biologists at the University
of Tübingen are carrying out research into marine fish which have developed
their own biofluorescence - producing bright red colors in the blue depths of
the sea. In the latest Proceedings of the Royal Society B, they demonstrate for
the first time that fish are able to perceive their own biofluorescence and to
use if to communicate with members of their own species.