biodiversity hotspot

Madagascar is considered a biodiversity hotspot because it harbours thousands of species found nowhere else on Earth.马达加斯加被视为生物多样性热点地区，因为它孕育了地球上别处找不到的数千个物种。

Protecting biodiversity hotspots is a cost-effective strategy for conserving a disproportionate share of global species.保护生物多样性热点地区是保护全球不成比例的大量物种的一种具有成本效益的策略。