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 ...

Social stress is bad for your brain. It's a prime suspect in the accumulation of oxidative stress in the brain, which is believed to contribute to mental health and neurodegenerative disorders—but the ...

(Phys.org) —Researchers from Oxford University in the U.K. have found evidence that suggests that cichlid fish evolved after the ancient Gondwana continent drifted apart, rather than before, as some ...

(PhysOrg.com) -- In African cichlid fish society, only the dominant male reproduces. But Stanford researchers have found that if the dominant male disappears, a subordinate cichlid can rise to the ...

If one would rewind the tape of life, would evolution result in the same outcome? An evolutionary biologist came up with this famous question. He suggested that evolution would not repeat itself: the ...

African cichlid fish evolved in calm, clearwater lakes saturated with sunlight, and are known for their incredible visual system, which relies on a diverse array of visual pigment proteins called ...

In social fish like cichlids, status is everything. High-status males are territorial and colorful – they defend territories and reproduce with females. Low-status males, which are less colorful and ...

Cuckoo catfish may be the worst parents ever. Rather than raising their own cannibalistic offspring, they force other fish species to raise them in their own mouths. But how do they do it? New ...

Complex teeth with multiple cusps in an African cichlid fish. The cichlid fish of Africa's Great Lakes have formed new species more rapidly than any other group of vertebrates. A new study shows that ...

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 ...