Studies show that worms that mimic tree branches can sense color even on the skin
It was newly discovered that when simulating, a type of
Adaptive color change and background choice behavior in peppered moth caterpillars is mediated by extraocular photoreception | Communications Biology
Caterpillar moth perceptive color through their skin to match their body color to the background | MPI CE: PR Eacock 2019
Chameleons, octopuses, and some insects perform ' simulation ' to assimilate their bodies into the surrounding environment so that they can not be eaten by predators. A research team from the Max Planck Institute of Science and Ecology in Germany changes its body color to a color close to that of the attached tree in order to understand how the insects mimicking recognize the surroundings . We closed eyes of the larva of Oshimofuriedashak, a kind of moth, and conducted an experiment on the effects that occur on its mimicry.
The left side of the image is the head of the caterpillar of Oshimo flieda shak, and the part circled in yellow is the eye. In this experiment, as shown on the right side of the image, I used acrylic paint to cover the eyes of Oshimo Flieda Shak.
The research team observed the change in body color by stopping the eyes of Oshimofuliedashak larvae and those of Oshimofuriedashak larvae that were not blinded as a
In addition, if you let the larvae of the invisible Oshimofuriedashak whose body color has already changed to a branch of a color different from the body color, the Osiimofuriadashaku larvae move to the branch that suits their body color. Of. From this, it was reconfirmed that the larvae of Oshimo flieda shak can recognize the surrounding color even if the eyes are closed.
As a result of research conducted by the research team on the genes of Oshimo frieda shak, it was found that genes related to vision were expressed not only in the head but also in the body. Furthermore, it seems that there were even visual genes that were expressed more on the body surface than on the head. The research team is conducting research on the assumption that this gene, which is often expressed on the surface side, is related to the recognition of surrounding colors.