杨氏虎（Panthera youngi）是生存于35万年前的豹属，化石在中国东北周口店以及日本山口县秋吉台出土。于1969年的研究指杨氏虎与美洲拟狮及穴狮是同种的。[1]但是，科学家却并不肯定杨氏虎是一头狮子，而相信牠是原始的虎或甚至是豹。
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