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Doctors Question Ethics of Baby Gender Test
Ira Flatow on Science: Crashing into a Comet
Imprisoning Bacteria to Isolate Changes
Data Show Orcas Defy Sleeping
U.S. Moves to Shore Up V.A. Funding
Report Highlights Cancer Risks of Low Radiation
A Final Good-Bye: Med Students Honor Body Donors
NASA -- and Shuttle's -- Timetable Is Uncertain
Paper Detailing Milk Contamination Released
Slate's Explainer: Can Sharks Really 'Smell' Blood?
Healing a Deep Wound from Iraq
Cattle Owners Hope High Prices Offset Effects of Mad Cow
Documentary Captures 'March of the Penguins'
Mad Cow Case Prompts Doubts on U.S. Testing
Stem-Cell Conference Draws Big Crowd