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A comment on Common food dye found to make skin and muscle temporarily transparent. Parent comment
That is so that you can observe features such as the circulatory system.
https://en.wikipedia.org/wiki/Zebrafish#Transparent_adult_bo...
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That is so that you can observe features such as the circulatory system.
https://en.wikipedia.org/wiki/Zebrafish#Transparent_adult_bo...