Recordings of human voices evoke more fear among animals living in the South African savanna than do snarls from lions. Plus, an economic historian who mined 200 years of gender pay gap data wins a Nobel Prize and researchers are seeking to understand the human body’s heat limit. Recordings of human voices evoke more fear among animals living in the South African savanna than do snarls from lions. Plus, an economic historian who mined 200 years of gender pay gap data wins a Nobel Prize and researchers are seeking to understand the human body’s heat limit.