When a male cockroach wants to mate with a female cockroach very much, he will scoot his butt toward her, open his wings and offer her a homemade meal — sugars and fats squished out of his tergal ...

TOKYO—A new study offers a hint why American cockroaches are so hard to get rid of: Females can breed for years and multiply their numbers dozens of times alone, without ever mating with a male.

Prepare to hear your worst nightmare: cockroaches can multiply on their own for years without meeting a member of the opposite sex. For a few types of cockroaches, such as the American cockroach, or ...

Female cockroaches don't need a mate to lay eggs, but they do like company. New research finds that virgin female cockroaches housed together are quicker to produce offspring than virgin females ...