As herds rely on fewer replacement heifers, the stakes for getting each one pregnant at the right time are higher than ever.

Scientists used modified egg and stem cells to create female mice with two mothers. These fatherless mice grew up to have babies of their own (through more typical means of conception). Le-Yun Wang / ...

Human Reproduction is a peer-reviewed scientific journal covering all aspects of human reproduction, including reproductive physiology and pathology, endocrinology, andrology, gonad function, ...

Figure 2: Neighbour-joining dendrogram of the genetic (allele-shared) distances between queens (Q), gynes (G) and male sperms (M) collected over all the five sites (A–E). A comparison between nests ...

You may know it takes one sperm and one egg to make a baby but, if you're like most people, you might not remember much else about sperm from biology class. If infertility is an issue for you and your ...

ARCHIVO - Alimentos vedados durante el embarazo, como el huevo y el pescado crudos, ya no pueden dañar al bebé si los ingiere la madre durante la lactancia. Foto: Uwe Anspach/dpa In a recent and ...

If it's hard for you to get pregnant or carry your pregnancy to term, one of the possible reasons could be a luteal phase defect, or a defective luteal phase. It's a condition that prevents your ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Eric's career includes extensive work in both public and corporate accounting with ...

Researchers have discovered that phenylbutazone, a non-steroidal anti-inflammatory drug (NSAID) commonly prescribed in horses, can affect the ability of a mare's egg cells -- called 'oocytes' -- to ...

Tithi Bhattacharya explains the insights of contemporary Marxists that help us link struggles in the sphere of production to those outside it in the sphere of reproduction. ONE OF the most common ...