Bringing 3D prosthetic printing to developing countries

According to the World Health Organization, approximately 30 million people in low-income countries require prosthetic limbs, braces or other assistive devices. To make things even tougher, the vast majority who require these ...

Predators drive social complexity

Variation in social organization and behavior of highly social animals like cichlids is primarily explained by predation risk and related ecological factors. This stresses the significance of predation for social evolution.

Toxic smog brings nightmare 'white Christmas' to Beijing

Beijing residents woke up to a white Christmas Friday morning but with the sky obscured by thick toxic smog rather than snow after more than 100 million people across China had been warned to stay indoors.

China smog around 50 times WHO recommendations (Update)

A swathe of China was blanketed with dangerous acrid smog Monday after levels of the most dangerous particulates reached around 50 times World Health Organization maximums, with energy use for heating blamed as winter sets ...

Age and fertility in social insects

A new research unit coordinated at the University of Freiburg tackles the question of why the otherwise usual trade-off between fecundity and lifespan in multicellular organisms is not present in social insects like bees, ...

Twitter working with probe on online threats

Twitter said Monday it was working with law enforcement officials on unspecified threats, amid reports that the social network had been targeted for blocking accounts linked to the Islamic State.

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