What Insects Go Through Is Even Weirder Than We Thought “For me, it was a road-to-Damascus type of moment,” James Truman, an entomologist, told me, recalling an encounter when he was sixteen. “My family had a summer place, a trailer, on the shores of Lake Erie. I was walking through the trailer park when I looked up and I saw an insect up in a tree. It was a parasitic wasp, with an abdomen three inches long.” He thought, What the heck is that? That curiosity “caused me to get a book,” Truman said. It was “Field Book of Insects,” by Frank E. Lutz, first published in 1918, with detailed drawings by the scientific illustrator Edna Libby Beutenmüller. “I had always known I wanted to be a biologist, but I had flipped from one interest to another: birds, mammals, whatever,” Truman said. Then he was transformed. He knew he would study insects.Insects are small, sure, but they represent more than eighty per cent of animal species. They also have a special magic: most of them undergo complete metamorphosis. The ladybug begins life as a spiky black crawler; the garden tiger moth starts out life as an extravagantly furred caterpillar. Some fish and amphibians also metamorphose (mammals never!), but because insects have exoskeletons—their metamorphic transformation happens out of sight—when the adult creature emerges, fully formed, the effect can be as astonishing as Athena transforming a falling Perdix into a partridge, or Daphne being turned into a laurel tree.
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