China denounces US sanctions against companies

(AP)—China on Tuesday denounced U.S. sanctions against a leading state arms maker and other companies over alleged illicit dealings with North Korea, Syria and Iran.

Sunbathing helps these bugs stay healthy

Sunbathing may be healthy – at least for one group of North American insects that apparently uses the activity to fight off germs, Simon Fraser University scientists have found.

New Study Eyes Evolution of Fairness and Punishment

(PhysOrg.com) -- Researchers have long been puzzled by large societies in which strangers routinely engage in voluntary acts of kindness, respect and mutual benefit even though there is often an individual cost involved.

Acacias use ants to guard flowers

(PhysOrg.com) -- Research by Dr Nigel Raine, Senior Lecturer in Animal Behaviour at Royal Holloway, University of London has revealed how a special plant-ant relationship thrives on give and take for mutual benefit.