Medaka fish were able to use faces for individual recognition, and were slower to recognise inverted faces but not inverted non-face shapes.

Müller glia cells in the medaka (Oryzias latipes) retina act as lineage restricted progenitors which only regenerate photoreceptors but can be activated to perform as potent stem cells using Sox2.

3D niche topology imposes a spatially biased random stem cell loss, which is differentially fine-tuned in neural retina and retinal pigmented epithelium to regulate growth, shape, and cellular topology.

In medaka fish, galanin-expressing neurons in the medial preoptic area occur nearly exclusively in males and mediate androgen-dependent male–male aggressive chases.

In the brain of medaka fish, neuropeptide B acts directly downstream of estrogen in a female-specific but reversible manner to mediate female receptivity to male courtship.

Studies of medaka and other ricefishes in the wild could provide insights in fields such as evolutionary biology, development and cancer research.

The unfolded protein response sensor/transducer IRE1-mediated splicing of XBP1 mRNA encoding its active downstream transcription factor to maintain the homeostasis of the endoplasmic reticulum is sufficient for growth and development of medaka fish.

The 5' modification of the donor template facilitates highly efficient Crispr targeted homologous recombination and at the same time favors single copy integration.

Timely macrophage recruitment is essential for neovascularization and neutrophil clearance during cardiac regeneration.

In medaka fish, the reduction of cystic proliferation of germ stem cells declines gametogenesis, reproduction success, and male sexual behavior, with a decrease of mating vigor.