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 ...

Asexual reproduction is promoted when female cockroaches are housed as a group, not alone, enabling them to maintain a colony for at least three years without a male's contribution. Parthenogenesis is ...