Inmates are dying from treatable infections. USA TODAY investigations explains what unredacted death reports reveal about medical neglect behind bars.

Using the oldest dog genes studied so far, scientists are finding more evidence that our furry friends have been our companions for thousands of years. Scientists think dogs descended from an ancient population of gray wolves somewhere in Europe or Asia. Tens of thousands of years ago, those wolves got used to living with people and became less aggressive.

Brazilian President Luiz Inácio Lula da Silva signed into effect a law that reinforces protective measures for women who are victims of gender-based violence, a move welcomed by feminist activists although they also demand more funds for prevention. The introduction of the law comes at a time of anger in Brazil over record cases of violence against women and a series of high-profile incidents that shocked the country and sparked widespread demonstrations on Sunday. The law, published in Brazil