http://www.newscloud.com/section/mammals Mon, 01 Dec 2008 12:13:47 +0100 FeedCreator 1.7.2 en-us http://www.newscloud.com/read/Experts_Half_of_mammals_in_decline_World_environment_msnbccom One in two mammal species on Earth are in decline and at least one in four are at risk of disappearing forever, according to a scientific survey released Monday and whose sponsors described the trend as an "extinction crisis" in the making. "Mammals are declining faster than we thought,"

]]> http://www.newscloud.com/read/Clues_To_Ancestral_Origin_Of_Placenta_Emerge_In_Genetics_Study Researchers at the Stanford University School of Medicine have uncovered the first clues about the ancient origins of a mother's intricate lifeline to her unborn baby, the placenta, which delivers oxygen and nutrients critical to the baby's health.

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