"A citizen scientist outside Peoria actually sent in a photograph of a species of bumblebee, the rusty patched bumblebee,bombus affinis, that was thought to have gone extinct in that area, and was recovered by a private citizen with a digital camera."

VOA: special.2011.05.24

Some of them get reinforced and those are the ones that survive and others don't get reinforced and those are the ones that go extinct.

一些行为得到了强化，因而保存了下来,另一些行为则并未得到强化,不再出现。

耶鲁公开课 - 心理学导论课程节选

Environmental activists say plans by Laos to build a dam in the Don Sahong area near the Cambodian border could doom the nearly extinct Irrawaddy dolphin.

VOA: standard.2010.01.11

He builds guitars from Appalachian spruce and nearly-extinct Brazilian Rosewood.

VOA: standard.2010.07.06