Tuesday, April 20, 2010

Hermaphrodite Frogs


Since the movie we watched touched on some male frogs becoming hermaphrodites, I thought I would elaborate on the topic:

The popular fertilizer Atrazine has been found to affect the sexual development of male frogs. The most interesting fact about this is, these frogs are being exposed to amounts 30 times lower than the amount deemed safe by the EPA. Like Ms. Meyer said, humans don't have to worry about the fertilizer getting into their water, but it does raise questions such as how other chemicals will affect human bodies.

"If you take five grains of salt, divide this weight by five thousand, that is the
amount of atrazine that causes these abnormalities," added Hayes.

Besides the frightening amount of chemicals that have caused this change, frogs native to the mid-west of the U.S. have found to be undergoing some changes. Althought Hayes said that this information cannot be deemed accurate until it is peer reviewed, he believes that the data is correct.

http://news.nationalgeographic.com/news/2002/04/0416_020416_TVfrog.html

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