and now humans are having to control them. 而现在人类不得不采取措施控制局面
Given there are so many of them, they get along relatively harmoniously. 鉴于它们的数量众多 彼此之间还算相对和谐
But sometimes the pisonia trees are too successful. 但有时腺果藤树的策略过于成功
so the pisonia trees develop seeds that are sticky 腺果藤树长出了黏黏的
Fairy Terns are permanent residents. 塞舌尔白燕鸥是这里的永久居民
There are three million birds on the island, 这个岛上有三百万只鸟
Although marine iguanas are expert swimmers, 尽管海鬣蜥是游泳的行家
But even the stormiest waters are no barrier for birds. 但再汹涌的海水都无法阻挡鸟类