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.

When you think of eggs, you likely picture chicken eggs, but think of all the animals that lay eggs like those chickens. Cockroaches are egg layers but not the eggs you want to stumble upon.

Female cockroaches are egg-cellent at sisterhood. A new study reveals that groups of the buggy little ladies can reproduce for years without a male, reports a Japanese study. The research, published ...