Subordinate male cichlid fish who help with the childcare for the dominant breeding pair are occasionally actually the fathers of some of the offspring they help to rear, according to new research.

In this video, I share the surprise discovery of unexpected cichlid fry in my aquarium, highlighting the fascinating breeding behaviors of these fish. Join me as I navigate the challenges of caring ...

Difference in body size (or sexual dimorphism) between males and females is common across the animal kingdom. One of the most extreme examples of sexual dimorphism is found in the cichlid fish species ...

Alloparental brood care, where individuals help raising the offspring of others, is generally believed to be favoured by high degrees of relatedness between helpers and recipients. Here we show that ...

Cichlids are one of the largest and strangest groups of vertebrate fish — fish with backbones — on Earth. They’re popular as pets and farmed in aquaculture, and scientists have been studying them ...

The evolution of new traits with novel functions has always posed a challenge to evolutionary biology. Studying the color markings of cichlid fish, scientists were now able to show what triggered ...

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 ...

This article originally appeared on Massive. Two cichlids, small silver fish brushed with yellow, romantically swoop and dive around each other. Just out of reach of the breeding pair, a duo of ...

Subordinate male cichlid fish who help with the childcare for the dominant breeding pair are occasionally actually the fathers of some of the offspring they help to rear, according to new research ...