Not all species need sperm to fertilize an egg for sexual reproduction. Some species need sperm in order to induce completion of egg nucleus development, but then never use the sperm’s DNA. I describe ...

If you've ever had a spiny leaf insect as a pet, or you're considering getting one, hopefully someone has warned you about this: if you put one in your enclosure, you might come back some time later ...

Two supposedly asexual species of stick insects may engage in occasional bouts of sex, helping to widen their gene pool and avoid harmful mutations. A handful of animals reproduce asexually, primarily ...