A new study found that screening turtle nests with wire screens is more effective than killing raccoons, but the high cost and labor-intensive process may slow widespread use. The method involves securing 3 ft.x 3 ft. mesh screens over nests to keep out raccoons, with results showing a significant reduction in egg losses.
Researchers from USGS, UC Berkeley, LLNL, and PG&E are studying the northern segment of the Hayward fault by excavating 10-foot-deep trenches. They will analyze soil layers, pollen, and carbon-14 to establish past earthquake dates and recurrence intervals. The project aims to inform the updated Bay Area Earthquake Probability Report.
A team of researchers found that Neandertal mitochondrial DNA falls outside normal human variation, indicating they did not contribute to the genetic makeup of modern humans. The study also confirms the origins of modern humans in Africa and suggests a divergence of 500,000 to 600,000 years ago.
Scientists at NIH have identified a gene alteration associated with NPC, leading to improved diagnosis and understanding of the disease. The finding also offers insights into cholesterol metabolism and may contribute to treatments for atherosclerosis.