Subject: [Tweeters] Why don't woodpeckers get concussions?
Date: Apr 12 15:31:50 2012
From: Douglas Robberson - dlrobbo at comcast.net


Interesting article.

http://www.msnbc.msn.com/id/47006033/ns/technology_and_science-science/#.T4TYd1EV2xA

Doug Robberson
Tigard, OR