There are 2.4 million dead trees within about 131,000 acres of the national park, according the latest fall count, says park spokesperson Scott Gediman.

"As long as these things have been tracked, it's the most dead trees we've seen in the park," Gediman says.

http://m.sfgate.com/news/article/dead-trees-Yosemite-Sierra-bark-beetle-California-12341359.php

Artist Kelly Murphy provides a peek behind the scenes, and describes how she developed an illustration for the December 2017 issue.

https://blogs.scientificamerican.com/sa-visual/the-evolution-of-a-scientific-american-graphic-beetle-resurrection/