His stories cover deep time, astrobiology, paleoclimate, paleontology, geology, geochemistry, marine biology, the philosophy of science, and evolutionary biology. His work has appeared in the New York Times, The Atlantic, Wired, the Washington Post, Slate, the Boston Globe, Aeon, and others. He was a 2015 journalist-in-residence at the Duke University National Evolutionary Synthesis Center and a 2011 Woods Hole Oceanographic Institution Ocean Science Journalism Fellow. Peter is a placental mammal, aerobic heterotroph and Boston Celtics fan.