Serotonin in the Zebrafish Brain (IMAGE)

California Institute of Technology

Serotonin in the Zebrafish Brain

Caption

Two zebrafish brains, side by side, with serotonin molecules shown in red. The brain on the right comes from a fish that cannot synthesize serotonin in its raphe nuclei, leading to less of the neurochemical throughout the brain. This animal slept about half as much as a normal zebrafish (brain on the left).

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Caltech

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