Worms’ Work | Jenny Uglow
Aarathi Prasad’s Silk encompasses millennia. Silkworm caterpillars 125 million years old have been found sealed in amber from Lebanon, and in amber from northern Myanmar a spider, “flanked by fifteen strands of silk threads, stood frozen at the moment it attacked a wasp, before both were drowned in resin.” One fascinating string of the book follows the evolution of different silk-spinning creatures and their “highly specialized system of genes, proteins, and glands.” Another charts the human exploitation of these spinners, from Neolithic China to the laboratories of today. Describing the repeated efforts to produce the fine, shimmering threads of silk—at times more valuable than gold—Prasad ranges beyond the familiar mulberry silkworm to the wild moths of India and South America, to the hairlike threads of the huge mollusk Pinna nobilis, and to an array of spiders, from the common European garden variety to the mammoth species of South America, whose webs are strong enough to knock off a man’s hat. Over thousands of years, Prasad notes, wherever delicate and beautiful threads were seen emerging from …