Hen face reddening (IMAGE)

INRAE - National Research Institute for Agriculture, Food and Environment

Hen face reddening

Caption

Assessing the reddening of a hen: lighter red when at rest (on the left), scarlet red during negative experiences such as capture.

Credit

INRAE - Bertin and Arnould

Usage Restrictions

Credit must be given to the creator. No derivatives or adaptations of the work are permitted.

License

CC BY-ND

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