Fresh off her wolverine study in Montana, wildlife biologist Alex Carter lands a job studying a threatened population of polar bears in the Canadian Arctic. Embedded with a small team of Arctic researchers, she tracks the majestic bears by air, following them over vast, snowy terrain, spending days leaning precariously out of a helicopter with a tranquilizer gun, until she can get down on the ice to examine them up close. But as her study progresses,...

In New Mexico, during Lent and Holy Week each year, the Penitent Brotherhood enacts a primitive Passion Play, which in its traditional ritual of self-torture represents a curious survival of the Middle Ages. Much lurid journalism has been devoted to the Penitentes, but in this sympathetic account by Alice Corbin Henderson, an eye-witness, the ceremonies are presented in their true aspect, with the historic background and reason for the survival clearly...