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Is Pope Francis Sicker Than We Know?

Italian media reports that the pontiff saw a brain-cancer specialist from Duke have Vatican watchers wondering more than ever about the health of His Holiness. VATICAN CITY — The Vatican’s press machine kicked into high gear Wednesday to try to dispel rumors that Pope Francis has a small benign brain tumor that was discovered by a Japanese specialist several months …

dog-and-human

Our bond with dogs may go back more than 27,000 years

Dogs’ special relationship to humans may go back 27,000 to 40,000 years, according to genomic analysis of an ancient Taimyr wolf bone reported in the Cell Press journal Current Biology on May 21. Earlier genome-based estimates have suggested that the ancestors of modern-day dogs diverged from wolves no more than 16,000 years ago, after the last Ice Age. The genome from this …