The mountain gorilla is on the verge of extinction.

居住在山区的大猩猩已濒临灭绝。

《牛津词典》

Some wild animals are on the verge of extinction.

一些野生动物濒临灭绝。

youdao

Our Lakota language is an Endangered language, on the verge of extinction.

我们拉科塔族的语言已经在消亡的边缘。

youdao

Today,the species is on the verge of extinction.

VOA: special.2009.03.25

And yet, despite their prevalence, history and culture in Beijing always seem to be teetering on the verge of extinction.

CNN: April 10, 2012 -- Updated 1353 GMT (2153 HKT)

More than half of Madagascar's lemurs are on the verge of extinction.

BBC: NEWS | Science/Nature | Quarter of primates face abyss

But with a tenth of all bird species and a fifth of mammals on the verge of extinction, cloning is better than nothing.

ECONOMIST: Endangered species