A February 5, 2010 article called "Animals adopt strategies to survive winter" is available On-line in the State-Journal Register. Chris Young focuses the first half of the article on birds, but the second half is dedicated to mammals, including the groundhog. Dr. Joesph F. Merritt is quoted in the latter half. The article can be read at the State-Journal Register's site, or at the NewsBank site. Additionally, the article was also picked up by the GateHouse News Service, and ran in the Siskiyou Daily News (Yreka, CA), The Courier (Lincoln, IL) and the Norwich Bulletin (CT).