Top news for December 21, 2008

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Biden Chooses Monica Bertagnolli to Lead NIH

Butterflies evolved 100 million years ago in North America

Mirror-Image Supernova Yields Surprising Estimate of Cosmic Growth

These Sharks Hold Their 'Breath' to Stay Warm

Pancreatic Cancer Vaccine Shows Promise in Small Initial Trial

Astronomy Tool Can Now Detect COVID in Breath

Parrot Babies Babble Just like Us

Will Creationism Continue to Flourish in Brazil?

Physicists Create Biggest-Ever Schrödinger's Cat

CDC: Highly Contagious, Drug-Resistant Ringworm Reported In U.S. For First Time