Horses have complex emotions, but interpreting them has proven difficult
https://www.earth.com/news/horses-have-complex-emotions-but-interpreting-them-has-proven-difficult/
A horse’s look of frustration is different to that of disappointment, researchers find
https://www.horsetalk.co.nz/2023/06/11/horse-frustration-disappointment-researchers/
元論文
Recognising the facial expression of frustration in the horse during feeding period
https://www.sciencedirect.com/science/article/pii/S0168159123001387
ライター
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