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ALT This is a picture of the program
![Screenshot of this quote: “In the next step we had to prevent them [stickleback fish] from seeing existing differences in red intensity. If it had not been fish, using the same artificial red color on both males would be a good choice. However, older studies from the 40s had tried nail varnish and their sticklebacks went astray. I got the idea to use filtered light instead when I saw the ballet “The Firebird” in the Berne opera house. The dancers changed color again and again. When the main lights were on, one could see that they all had white clothes which appeared red or blue when the color of the light was changed. I tried green lamps and suddenly all red disappeared from the sticklebacks and the different reds looked brownish.” ― Manfred Milinski on Milinski & Bakker (1990) Female sticklebacks use male coloration in mate choice and hence avoid parasitized males.](https://pbs.twimg.com/media/GX_TNH2WgAAj3Ko.jpg?name=orig)
ALT Screenshot of this quote: “In the next step we had to prevent them [stickleback fish] from seeing existing differences in red intensity. If it had not been fish, using the same artificial red color on both males would be a good choice. However, older studies from the 40s had tried nail varnish and their sticklebacks went astray. I got the idea to use filtered light instead when I saw the ballet “The Firebird” in the Berne opera house. The dancers changed color again and again. When the main lights were on, one could see that they all had white clothes which appeared red or blue when the color of the light was changed. I tried green lamps and suddenly all red disappeared from the sticklebacks and the different reds looked brownish.” ― Manfred Milinski on Milinski & Bakker (1990) Female sticklebacks use male coloration in mate choice and hence avoid parasitized males.
