That makes the tiger and snow leopard "sister species", the researchers report in the journal Molecular Phylogenetics and Evolution.
“这使老虎和雪豹成为了‘姐妹种’”，研究者在《分子系统学和进化》一刊中这样说。
The genetic analysis also reveals the tiger began evolving 3.2 million years ago, and its closest living relative is the equally endangered snow leopard.
基因研究显示，虎的演变与进化始于320万年前，与其相距较近的是如今濒临灭绝的雪豹。
The genetic analysis also reveals the tiger began evolving 3.2 million years ago, and its closest living relative is the equally endangered snow leopard.
基因研究显示，虎的演变与进化始于320万年前，与其相距较近的是如今濒临灭绝的雪豹。
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