Most cockroaches are vital for ecosystems, with only 1% living in close proximity to humans. The German cockroach, a common urban pest, has been genetically traced back to its origin in India 2,100 years ago.
Despite the name 'German cockroach,' it has no established ties to Europe. DNA comparison revealed it shares a nearly identical genetic sequence with a cockroach species from the Bay of Bengal, indicating a recent divergence 2,100 years ago.
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