Sterility in Frogs

My article this week was about sterility in frogs caused by environmental pharmaceutical progestogens. Female tadpoles that swim in water contaminated with these are likely to have abnormal ovarian and oviduct development. This results in adult sterility. Many of these things get released into the environment through waste, in the sewage systems. Frogs can be effected even if the levels of these pharmaceuticals are low. The frogs seem to be most effected when they are tadpoles, but it does effect them into their adulthood. Many of these have been found in waterways around the world. Levonorgestrel has also been found to contribute to sterility in frogs. I found my article on Science Daily. It was relatively short, but I felt it related to what we discussed in class last week.