How the mammoth got its wool: Scientists find gene variants involved
By comparing DNA recovered from two woolly mammoths with that from three modern-day Asian elephants, a team of scientists identified genetic variations unique to the mammoths that appear to be related to the mammoths' ability to survive in harsh arctic conditions.
Returning killer T cells back to barracks could improve vaccines
Just as militaries need to have trained, experienced soldiers ready for future wars, making sure that the immune system has enough battle-ready T cells on hand is important for fast-acting, more effective vaccines, according to Penn State researchers.
Mutation in zinc transport protein may inhibit successful breast-feeding
Zinc plays an important role in a woman's ability to successfully breast-feed her child, according to health researchers.