posted on Jun, 21 2004 @ 12:08 PM
On the subject of the frog mutations , i beleive pollution has little to do with it. Primarily the mutations in amphibians is due to uv light ,
possible holes within the ozone itself. years back many studies where done in regards to this developing trend of mutations and the end result was
determined to be uv radiation levels affecting the young from embryo at an early age. If you are not familiar with the reproduction of amphibians
there eggs are laid in a body of water and the eggs are transparent so you can see the developing fetus. Not only can you see it but the radiation of
the sun can also pass right to it. After a few weeks the egg hatches and the frog is released in a form commonly known as a tadpole ( they look like
little sperm ) at this stage the frog spends its time in the clearer area of the water so it can feed off of plant life that is growing within the
body of water. So again its subject to uv radiation and its amplified by the magnification of the water. In the following weeks the frog will develop
front and back legs and other extremeties if it mutates and this can be reproduced within a controlled enviroment and has been been done a few times
even by amerature herpetoligists.
Sorry for the rant but i spent several years in the reptile trade and mutations within amphibians have been rampant for over ten years now.
Unfortunetly mutations is the least of the cocern , the lack of succsessful reproductions is the big concern. The numbers of amphibians in the wild
has greatly decreased and this of course offsets the balance of things.