BEIJING - Chinese authorities have been asked to check and upgrade their air quality monitoring system in urban areas after its 20 cities failed in standard pollution indicator test, a media report said.

WASHINGTON - Scientists have attained success in growing human liver cells on resorbable scaffolds made from material similar to surgical sutures.

LONDON - A new study has found that a blindfolded dolphin can imitate movements of other dolphins, almost as if it has a sixth sense.

LONDON - A new study has found that there is no direct connection between black holes and dark matter.

WASHINGTON - Married couples live with the illusion that they communicate well with their partners. But a new study could be an eye-opener for them.