In Hungary, ethological research is most often identified with tests on dogs, but novel methodological advances could bring another species, the paradise fish, into the spotlight. Fish are easy to ...

Researchers have elucidated how a single photoreceptor in the pineal gland of zebrafish detects color. We see color because photoreceptor cones in our eyes detect light waves corresponding to red, ...

Dominant males of an Indonesian species of fish turn black during periods of heightened aggression, scientists have discovered. Their blackened markings, which quickly emerge at the start of a ...