Two featherfins conducting preference trials (IMAGE)

Max Planck Institute of Animal Behavior

Two featherfins conducting preference trials

Caption

Golden featherfin (left) and blue featherfin (right) chichlids take part in basic preference trials for colour. They remove 3D-printed shells from their sand bowers in order of which they prefer least.

Credit

Maëlan Tomasek / Max Planck Institute of Animal Behavior

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These are for editorial purposes relating to this press release and the study “Tomasek et al. (2026) Decision rules diverge between sympatric Featherfin cichlids despite shared preferences, ecology and evolutionary history. PNAS” They MUST be credited and MUST NOT be sold on to third parties.

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