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Zebrafish are a small, transparent aquarium fish used as a model system for studying the biology of vertebrates. A 21-day old zebrafish. Their optical clarity and relatively easy maintenance make them a favorite for geneticists and developmental biologists. In this fish, the muscles can be seen as chevron shapes in the tail, the swim bladder as a "bubble" just behind the head, and the food that the fish has been eating as a brown patch just below the swim bladder.

Date:January 27, 2004
Credit:Shawn Burgess, NHGRI
Location:National Human Genome Research Institute, National Institutes of Health, Bethesda, MD
Dimensions:1172 x 381
File Size:288 Kb
Rights:PublicExcept where otherwise noted, this image is in the public domain and may be used, linked or reproduced without permission. If you use an image, please credit the source listed above with a link back to where possible. Thank you!

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