Presentations from the National Science Teachers Association
(NSTA) Conference 2000 - PowerPoint slide presentations on
the malformities and the declines in frog and toad populations.
By Joan Chadde, Western U.P. Center for Science, Mathematics
and Environmental Education & Michigan Technological University,
Houghton, MI; Tony Murphy, Hamline University, St. Paul, MN;
Kristan Schuster, Hancock High School, Hancock, MI)