the.com/cichlid

The fish that turned parenting into an evolutionary arms race.

means A member of Cichlidae, a huge family of freshwater fish (famous from African rift lakes and South American rivers) known for complex social behavior and parental care, from mouthbrooding to guarding fry.

from From the scientific genus name Cichla, coined in the early 1800s from Greek kichle, meaning 'a kind of fish' (likely a wrasse or similar), itself related to kichle/kichla for 'thrush' — an old habit naturalists had of borrowing bird names for fish of similarly varied, mottled coloring. The family name Cichlidae was built from that root to classify the group scientifically, long before anyone knew how wildly these fish would diversify in the rift lakes of Africa.

mouth brooding
Some species incubate eggs inside their own mouth
rapid evolution
Hundreds of species evolved in a single African lake
face recognition
Can distinguish individual human faces in studies
aggressive parenting
Fry swim back into mom's mouth when threatened
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