They're six-legged, hairy home invaders that just won't die, no matter how hard you try.
This photo provided by Qian Tang shows a German cockroach, a specimen from Harvard Museum of Comparative Zoology, Friday, May 17, 2024, in Cambridge, Mass. A new study, published Monday, May 20, in the journal Proceedings of the National Academy of Sciences, tracks how cockroaches spread around the globe to become the survival experts we know today. DALLAS — They're six-legged, hairy home invaders that just won't die, no matter how hard you try.
A new study uses genetics to chart cockroaches' spread across the globe, from humble beginnings in southeast Asia to Europe and beyond. The findings span thousands of years of cockroach history and suggest the pests may have scuttled across the globe by hitching a ride with another species: people. Researchers analyzed the genes of over 280 cockroaches from 17 countries and six continents. They confirmed that the German cockroach — a species found worldwide — actually originated in southeast Asia, likely evolving from the Asian cockroach around 2,100 years ago. Scientists have long suspected the German cockroach's Asian origins since similar species still live there.The cockroaches then globe-trotted via two major routes.
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