Sterility in frogs caused by environmental pharmaceutical progestogens – Frogs appear to be very sensitive to progestogens, a kind of pharmaceutical that is released into the environment. Female tadpoles that swim in water containing a specific progestogen, levonorgestrel, are subject …
Tag Archives: copper
A new batch of ten Slinn Pickings
Posted by Robert Slinn on February 16, 2011
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What are metal alloys?
Posted by David Bradley on September 29, 2010
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