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Clues from a Somalian cavefish about modern mammals' dark past
After millions of years living in darkness, a species of blind cavefish has lost an ancient system of DNA repair. That DNA repair system, found in organisms including bacteria, fungi, plants, and most other animals, harnesses energy from visible light to repair DNA damage induced by ultraviolet (UV) light. The findings are intriguing in part because only placental mammals were previously known to lack this system.
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Hundreds of dams are being proposed for Mekong River basin in Southeast Asia. The negative social and environmental consequences -- affecting everything from food security to the environment -- greatly outweigh the positive changes of this grand-scale flood control, according to new research.
Hope has emerged for patients with a serious type of bone marrow cancer as new research into a therapeutic drug has revealed improved outcomes and survival rates.
Neuroscientists have used data from the human brain connectome -- a publicly available 'wiring diagram' of the human brain based on data from thousands of healthy human volunteers -- to reassess the findings from neuroimaging studies of patients with Alzheimer's disease.
