A team of researchers at Charles Darwin University, in Australia, has found that male fish that mouth-brood are not always guaranteeing that the eggs they carry were fertilized by them. In their paper ...

University of Maryland researcher Cheng-Yu Li was in the lab one day when he noticed a fish with a protruding jaw: A telltale sign that it was incubating eggs in its mouth, keeping its offspring safe ...

Some animal parents go to extraordinary lengths to shield their young from predators, disease, and dangerous currents.

A study of Australian fish that care for offspring through mouthbrooding shows that things underwater are not always as monogamous as they seem. By Elizabeth Preston Lurking among the underwater ...

In an extreme feat of parenting, some female cichlid fish carry their eggs and babies in their mouths for about two weeks. In this way, the young fish and fish-to-be are protected from predators in ...

There are concerned, overprotective parents, and then there are cichlid fish. After a male cichlid fertilizes the female’s eggs, she holds her entire brood of embryos inside her mouth for two weeks ...

Raising babies can be exhausting—so much so that some mouthbrooding mothers snack on their young, according to a new study. A central African cichlid fish, Astatotilapia burtoni—commonly called Burton ...

University of Maryland researcher Cheng-Yu Li was in the lab one day when he noticed a fish with a protruding jaw: a telltale sign that it was incubating eggs in its mouth, keeping its offspring safe ...