Peter Yarrow, one of three singers in the 1960s folk group Peter, Paul and Mary, has died. He was 86. Yarrow passed away Tuesday after a four-year battle with bladder cancer, his publicist ...

Through clear-eyed arguments and ceaseless advocacy, Australian philosopher Peter Singer has revolutionized modern philanthropy—twice. His 1972 essay “Famine, Affluence, and Morality” argued ...

Peter Singer wants us to reconsider serving turkey on Thanksgiving. He has his reasons. He has lots of them, all tucked into a slim volume, “Consider the Turkey,” which the 78-year-old ...

Peter left behind an impressive musical legacy and a family, as well. Read on to learn five things about the singer/songwriter. Yarrow was 1/3 of the legendary folk trio Peter, Paul, and Mary.

Pillay is an editorial fellow at TIME. Courtesy Alletta Vaandering Through clear-eyed arguments and ceaseless advocacy, Australian philosopher Peter Singer has revolutionized modern philanthropy ...