Giant sperm may be the ultimate packers. Inside male fruit flies, thousands of sperm ­— each about as long as the fruit fly itself ­— cram into sacs roughly the size of a very fine pen tip. And ...

You have likely not spent much time thinking about the uterus of the fruit fly, Drosophila melanogaster. But then, neither have most scientists, even though Drosophila is one of the most thoroughly ...

Osaka, Japan – For many of us, when we think of microbiomes, our first thoughts are probably about the beneficial microorganisms that live in our guts. But now, researchers from Japan and US have ...

The cellular biology of reproduction is often depicted as an epic journey, in which millions of intrepid sperm fight to be the first to claim the ultimate prize: the chance to fertilize the egg, which ...