DETROIT
Aug. 1/ 2013
In 1860, an uneasy Charles Darwin confided in a letter to a friend: “I had no intention to write atheistically” but “I cannot persuade myself that a beneficent and omnipotent God would have designedly created the Ichneumonidae with the express intention of their feeding within the living bodies of caterpillars.” What appalled him had fascinated entomologist William Kirby (1759-1850): The ichneumon fly inserts an egg in a caterpillar, and the larva hatched from the egg, he said, “gnaws the inside of the caterpillar, and though at last it has devoured almost every part of it except the skin and intestines, carefully all this time avoids injuring the vital organs, as if aware that its own existence depends on that of the insect on which it preys!”