image: A Medaka pair: the top fish is a female with eggs, and the bottom fish is male. This image relates to a paper that appeared in the 3 Jan., 2014, issue of Science, published by AAAS. The paper, by Teruhiro Okuyama at The University of Tokyo in Tokyo, Japan, and colleagues was titled, "A Neural Mechanism Underlying Mating Preferences for Familiar Individuals in Medaka Fish." view more
Credit: [Image courtesy of Dr. Kiyoshi Naruse (National Institute for Basic Biology)]