How long have cockroaches been in existence?

Are cockroaches the oldest species?

But perhaps even more intriguing than the future of these persistent pests is their unusual past. A pair of 99-million-year-old roaches are now the oldest known animals that unambiguously adapted to life in caves, according to a study published this month in Gondwana Research.

What do cockroaches hate?

Roach Repellents

Peppermint oil, cedarwood oil, and cypress oil are essential oils that effectively keep cockroaches at bay. Additionally, these insects hate the smell of crushed bay leaves and steer clear of coffee grounds. If you want to try a natural way to kill them, combine powdered sugar and boric acid.

They found that the cockroach (native to Africa, despite its American moniker) has more DNA than any other insect whose DNA has been sequenced except the migratory locust. The size of its genome—3.3 billion base pairs—is comparable to that of humans.

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