71.   The operation followed months of legal wrangling over whether the parents could refuse surgery and let nature take its course.

72.   We cannot let nature take its course as the haze will drive away tourists.

73.   We believe that nature should take its course.

74.   He said wildlife officials might decide to let nature take its course, abandoning the calf and leaving it to starve or be killed by other predators.

75.   When it finally displayed its pink blooms, he took six cuttings and prayed for nature to take its course, he told journalists on Monday.