The soil roundworm Caenorhabditis elegans has just 959 cells and a body that is mostly gut and reproductive organs. Yet its reproduction is similar enough to ours that scientists like Francis McNally ...

Abstinence may have found its most impressive poster child yet: Diploscapter pachys. The tiny worm is transparent, smaller than a poppy seed and hasn't had sex in 18 million years. It has basically ...

The development of maternal egg cells is pivotal for survival—but also precarious. During meiosis, the DNA-containing chromosomes can easily be broken or lost, causing infertility, miscarriage or ...