Wiki 篇文有引資料來源㗎喎。
網上大把學術啲嚴肅啲嘅,一search就有。
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5306232/
“Chickens have complex negative and positive emotions, as well as a shared psychology with humans and other ethologically complex animals. They exhibit emotional contagion and some evidence for empathy.
Chickens have distinct personalities, just like all animals who are cognitively, emotionally, and behaviorally complex individuals.”
邊個先要行撚開?