We trained chickens to react to an average human female face but not to an average male face (or vice versa). In a subsequent test, the animals showed preferences for faces consistent with human sexual preferences (obtained from university students). This suggests that human preferences arise from general properties of nervous systems, rather than from face-specific adaptations. We discuss this result in the light of current debate on the meaning of sexual signals and suggest further tests of existing hypotheses about the origin of sexual preferences.
Chickens prefer beautiful humans. – Seriously, Science?
Many people believe that our perceptions of human beauty are primarily determined by societal norms. But could there be something innate in our brains that influence whether we think a face is beautiful? Here, a group of researchers tested this hypothesis by determining whether chickens have any innate preferences for certain human faces. To do so, they trained …
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