Strands of cow cartilage substitute for ink in a 3D bioprinting process that may one day create cartilage patches for worn out joints, according to a team of engineers.

Popular theories of why our human ancestors gained and then lost dark skin over the course of evolution may be incorrect, according to a new paper suggesting that heavily pigmented skin evolved because it forms a stronger barrier against a host of environmental challenges. Because deeply pigmented skin requires more energy to produce, they propose, our ancestors shed some of these pigments through natural selection as they moved north and needed less protection against these threats.

An analysis of genetic mutations which cause early-onset Alzheimer's disease suggests a new focus for research into the causes of the disease.

Direct transmission of cancer among some marine animals may be more common than once thought, suggests a new study.

Engineers have found a way to prevent hydrogels from dehydrating, with a technique that could lead to longer-lasting contact lenses, stretchy microfluidic devices, flexible bioelectronics, and even artificial skin.

In a new study researchers explain how a type of herpesvirus uses mimicry to trick the host cell to produce proteins the virus needs, and to drive cell growth. The findings have implications for how the virus causes cancer.

Resveratrol is a naturally occurring polyphenolic phytochemical produced in several plants, especially grapes skin and seeds. One epidemiological study reported a positive association between moderate red wine consumption and a low incidence of cardiovascular disease, known as the "French Paradox."