Are women born with all of their eggs?Controversial study suggests ovaries can generate new eggs, potentially challenging dogmaFemales are born with all the eggs they will ever have: You learned this in middle school biology, again in high school and maybe even one more time at Hopkins. Now, however, researchers in Shanghai are challenging this long-held biological doctrine. They claim to have taken newly-created egg cells from an adult mouse ovary, and then implanted them in another mouse that subsequently gave birth to a litter from these cells. Post a comment |
Bioethanol: A drain on agricultural water resourcesIn the United States, about 9 billion gallons of bioethanol are produced each year. This bioethanol, derived from corn and other plants, is mixed into the gasoline supply to fuel cars and trucks across the nation. As a clean-burning alternative to oil, gasoline and natural gas, bioethanol is widely seen as a necessary step in our nation's move to sustainable energy usage. Post a comment |