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 ...

A research team led by Hiroshima University and Tokyo University of Agriculture and Technology have proposed a neuroendocrine ...

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 ...

Researchers have uncovered a daily mating capacity for medaka, providing important insights into the relationship between the cost of gamete production and sexual selection. Working out the kinks of ...

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 ...

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 ...