Johnson_frog_deform_leg03

This infected Northern leopard frog (Rana pipiens), with two extra hind limbs extending from the pelvis, is an example of the amphibian deformities studied by Pieter Johnson at the Center for Limnology. Johnson has recently authored a research paper showing that these malformations, along with the parasitic worm linked to them, have been found in lakes and ponds for over 50 years and represent an emerging disease within these wildlife populations.
Used with permission by:
UW-Madison University Communications 608/262-0067
Photo by: courtesy Pieter Johnson, Center for Limnology
Date: 12/03 File#: scan provided