In December the lake trout goes home to lay her eggs in a cold and rocky nursery. Gayle Boss draws parallels with the Nativity, which we think of as peaceful and idyllic, but was likely marked by strenuous effort and extreme danger. Part of a Constant Wonder series marking the Christian Advent with daily vignettes that distill the spirit of the season, in keeping with our mission of exploring wonder and awe in all nature, human or wild, vast or small: encounters that move us beyond words. Guest: Gayle Boss, author of "All Creation Waits: The Advent Mystery of New Beginnings"