For at least hundreds, and possibly thousands, of years, Yup’ik families in western Alaska have carefully crafted sealskin pokes (bags) to store their seal blubber and oil. But today, most people are opting to keep their hunting hauls in easy-to-access, more convenient plastic buckets. But what impact does this shift have not only on the taste and nutritional value of the food, but on families and ancient cultural traditions?

Father’s involvement in raising a child, on average, brings good news. It leads to lower child mortality and better social, psychological and educational outcomes. So why do some men choose not to invest in their children? According to a new study, at least part of the reason may be related to testicle size and testosterone levels.