Audio Slideshow: The Parasites of Beaver Pond Tom Raffel of Penn State's Center for Infectious Disease Dynamics takes writer Brendan Borrell on a trip to Beaver Pond where the parasites are jumping. Please download the Adobe Flash Player to view this content:   Rate this article Currently 1.00/5 1 2 3 4 5 Rating: 1.00/5 (1 vote ) Comment on this article