There are several animal species that can only be found on the islands like the Galapagos tortoise, the largest tortoise species in the world.

有几种动物只能在加拉帕戈斯群岛上找到，比如加拉帕戈斯龟，是世界上最大的龟种。

As a result creatures like the giant Galapagos tortoise were starving to death, their own numbers had decreased from over 250,000 down to just 3000 left by the 1970s.

结果，像加拉帕戈斯象龟这样的生物一只一只地饿死，它们的数量从 25 万只减少到 20 世纪 70 年代只剩下三千只。