StickInsect_TheAge.txt:

The first surprise was that all of the most primitive walking sticks, unlike the web spinners next to them in the evolutionary tree, were wingless, Mr Whiting said. Much further along, however, winged species ^{|10 words|}reappeared. Subsequently, winged species disappeared and reappeared three more times.

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

^{|10 words|}reappeared. Subsequently, winged species disappeared and reappeared three more times.

Matched document:

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