Induction of mortality and malformation in Xenopus laevis embryos by water sources associated with field frog deformities. Cowen, R. 1990. Kavlock, R.J. 1998. Milius, S. 1999. Killer skin fungus nails boreal toads.
Parasites make frogs grow extra legs .
Mlot, C. 1997. Water link to frog deformities strengthened . Raloff, J. 1998. Common pesticide clobbers amphibians . 2K6 Canada From Science News , Vol.