Researchers have reported growing hearts containing human cells in pig embryos for the first time. The embryos survived for 21 days, and in that time their tiny hearts started beating. The findings ...

Scientists have made a landmark breakthrough that enables the creation of viable human egg cells from a skin cell, new research claims. The study, published in Nature Communications, detailed how US ...

Scientists have discovered that H5N1, the strain of highly pathogenic avian influenza virus currently spreading in U.S. dairy cows, only needs a single mutation to readily latch on to human cells ...