Now on the iPad: Apps for orangutans
What online teens consider 'research'
New rules aim to improve US food safety
Watching for early signs of autism in babies
Ocean floor reveals past climate changes
WHO warns of malaria resurgence
US economy faces another cliff
Televisions stole the spotlight at the consumer electronics show
Five actresses compete for coveted Oscar
Social Innovation Summit 2012 comes to an end
Inaugural festivities put the 'party' into political parties
Discover America with American Mosaic!
Getting a firm grip on weed control
Epilepsy disorder suffered by millions around the world
Teenager wins top prize for pancreatic cancer test
Words and their stories: state nicknames, part 3
Words and their stories: Belittle
40 years Later, US abortion opinions remain passionate
Killing of US school children sparks gun control discussion
US president attends inaugural prayer service
Soaring population, climate change stress resources
Michelle Obama stuns in Jason Wu gown
Tattoos illustrate art of saving lives
Words and their stories: Losing it
Abduction prompts girl to fight back for all women
New technology used to track US flu outbreak(视频)
A new way to shop: The fashion truck
30,000 Sandy-damaged cars stored on eastern Long Island
Words and their stories: Santa Claus
奥巴马发表农历蛇年贺词