StickInsect_TheAge.txt:

Biologists say they have ^{|5 words|}found what is quite likely to be the first ^{|25 words|}documented case of "re-evolution", suggesting that nature does indeed offer second chances - a species can evolve a new characteristic, lose it and then regain it.

Matched paragraph from "Walking Sticks, Just Winging It (washingtonpost.com)":

A team of biologists says it has ^{|5 words|}found what is quite likely the first-ever ^{|25 words|}documented case of "re-evolution," suggesting that nature does indeed offer second chances -- a species can evolve a new characteristic, lose it and then regain it.

Matched document:

Walking Sticks, Just Winging It (washingtonpost.com).
http://www.washingtonpost.com/wp-dyn/articles/A63146-2003Jan15.html