Interesting article.
Models of Transparency
“Researchers are taking advantage of small, transparent zebrafish embryos and larvae—and a special strain of see-through adults—to understand the development and spread of cancer.”
“Critically, zebrafish can be used to identify the important pathways and processes that cause cancer in people. Common organ systems and cell types are shared between human and zebrafish, and whether induced by transgenesis or carcinogens, cancers arising from the blood (leukemia and lymphoma), pigmented cells of the skin (melanoma), and the cells that line the bile ducts (cholangiocarcinoma) have microscopic features that are essentially indistinguishable between humans and zebrafish.”
http://www.the-scientist.com/?articles.view/articleNo/34834/title/Models-of-Transparency/