Dead baby dolphins continue to wash ashore on Gulf beaches

Dozens of dead baby and adult dolphins have washed ashore on Gulf beaches since the beginning of the year, according to new reports. The National Oceanic and Atmospheric Administration (NOAA) says the rising death count is exceptionally high, especially because the normal birthing season for dolphins -- a time at which some baby dolphins inevitably end up dying -- is normally several months from now.

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PCBs May Affect in Vitro Fertilization Outcomes

ScienceDaily (Feb. 26, 2011) — According to a new study published February 24 in the peer-reviewed journal Environmental Health Perspectives (EHP), serum polychlorinated biphenyls (PCBs) at concentrations found in the general U.S. population are associated with the failure of fertilized embryos to implant in the uterus after in vitro fertilization (IVF). This study may help explain earlier reports of impaired reproduction and increased time to pregnancy among women exposed to PCBs. "Our findings provide insight into a specific time point following conception that determines whether a pregnancy will occur that may be particularly sensitive to PCB exposure," says lead author John Meeker.

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