Medaka fish that lacked functional Hmgn2 genes were unable to distinguish between simple shapes, revealing a new function for the regulatory gene. Medaka fish that lacked functional Hmgn2 genes were ...

In many areas, the environment fluctuates greatly depending on the season, and animals living in those areas must adapt to the changing environment. A research group from the National Institute for ...

Medaka have been found to be active late at night, with high levels of courtship behavior between 2 a.m. and 3 a.m. Observing animal behavior in a laboratory offers a controlled environment, but these ...

A research team led by Hiroshima University and Tokyo University of Agriculture and Technology have proposed a neuroendocrine mechanism in bony fish that signals ovulation from the ovaries to the ...

THE JAPANESE picture book “Soratobu medaka” tells the extraordinary tale of tiny stream-dwelling fish called medaka hitching a ride on an obliging bird to a far-off freshwater pool. The story has ...

Can the heart physiology of zebrafish help treat human heart conditions? This is what a recent study published in Biology Open hopes to address as a team of researchers from the University of Utah ...

New research sheds light on embryonic mitosis, thanks to a combination of novel imaging techniques, CRISPR/Cas9 genome editing technology, a modern protein-knockdown system, and medaka, or Japanese ...

No equivalent to the mammalian Sry sex-determining gene has been found in non-mammalian vertebrates. In an Advanced Online Publication in Nature, Masaru Matsuda and colleagues describe the ...

Medaka fish that lacked functional Hmgn2 genes were unable to distinguish between simple shapes, revealing a new function for the regulatory gene. The medaka, also known as the Japanese rice fish ...