A new study that looked at gut length variation between cichlid fish species found that some of the genetic loci for the trait are sex-specific even though males and females of the same species have ...

Cichlid fish are more likely to accept immigrants into their group when they are under threat from predators and need reinforcements, new research shows. Cichlid fish are more likely to accept ...

Fact checked by Emily EstepReviewed by Nick Saint-ErneFact checked by Emily EstepReviewed by Nick Saint-Erne The blood parrot cichlid is a hybrid aquarium fish species that has created notable ...

Osaka, Japan — While there is an increasing consensus among humans that corporal discipline of children does more harm than good, fish may disagree. Ryo Hidaka, Shumpei Sogawa, Masanori Kohda and ...