Blue Image on Black Background of Insect Brains (IMAGE)
Caption
Image of the left half of the brain of the flour beetle (left hand side of image) compared with the right half of the brain of the fruit fly (right hand side of image). Similar structures can be observed, but they are of different sizes (e.g. the parts of the brain that process the signal from the eyes - each on the very outside, respectively). In beetle and fly the same nerve cells are stained with the gene retinal homeobox (red dots indicate the nuclei of the nerve cells).
Credit
M Farnworth
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