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  • Different varieties of medaka. Artwork by Saisetsu Honda and Nobuko Makihara.

    New Fish on the Block

    The medaka, or Japanese rice fish, is a century-old genetic model on the rise again. Long studied by scientists in Japan, it has been rediscovered by the wider research community over the last decade as a flexible tool for vertebrate genetics. Part of the appeal is the medaka’s amenability to inbreeding. In the latest issue…