“Medaka are among the fish that spawn, where fertilization occurs ... went by), and then the male was transferred to another tank with a new female. This process continued until the males ...

Medaka–aka the Japanese rice fish–are only about 1.4 inches long and can be found in rice paddies, ponds, marshes, quiet streams, and tide pools in Japan. They are a popular aquarium fish and ...

Medaka fish that lack functional Hmgn2 genes are unable to distinguish between simple shapes, revealing a new function for ...

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 ...

"Medaka are among the fish that spawn, where fertilization occurs after the eggs and sperm are released in water. As these gametes are difficult to collect, the number of sperm released and the ...

Fig. 1 Male and female pairs of Medaka (top, the fish on the left is female) and zebrafish (bottom, the fish on the right is female). Fig. 2 A large scale aquarium system used in mutant screening and ...

Compared with other fish, sex determination in medaka has been closely scrutinized. Homologous targets of Sry — the mammalian gene that directs male development — are known in medaka ...