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.

Ants don't get Alzheimer's

It's a poignant fact of life: no matter how much we exercise, or how many wheatgrass smoothies we slurp, our bodies still age. As the years pass, skin wrinkles, eyesight falters, hearing fades. It's called senescence—the ...

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.

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