• 狗已經和人類一起演化了1萬年,對人類的情緒特別敏感。PHOTOGRAPH BY MARK THIESSEN, NAT GEO IMAGE COLLECTION
  • 狗已經和人類一起演化了1萬年,對人類的情緒特別敏感。PHOTOGRAPH BY MARK THIESSEN, NAT GEO IMAGE COLLECTION

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