Large mammals once wandered the volcano's slopes, but today, foxes, wild cats, rabbits and mice are more common.
2019年6月四级真题（第二套）听力 Section C
"We're obligated to keep a pulse on the population for at least five years after the foxes are delisted," says Boser.
2018年12月六级真题（第三套）阅读 Section A
But keeping those foxes from harm will occupy Boser and her colleagues for years to come.
2018年12月六级真题（第三套）阅读 Section A
So Boser has to vaccinate her foxes against various diseases.
2018年12月六级真题（第三套）阅读 Section A
That includes tagging the foxes and monitoring their numbers to ensure nothing goes wrong.
2018年12月六级真题（第三套）阅读 Section A
The coyotes killed a large percentage of the park' s red foxes, and completely drove away the park' s beavers.
2017年高考英语全国卷3 阅读理解 阅读C 原文