A large-scale analysis of 117 mammal species found that preventing reproduction is associated with longer lifespans, suggesting a strong link between reproductive activity and life expectancy. Why do ...

Birds do it, and bees do it. Indeed, researchers estimate that over 99.9% of eukaryotes reproduce sexually. What, then, are the true costs and benefits of sex? Yet again, this simple example ...

The intensification of livestock production systems is a prerequisite to meet the growing demand for animal products. Genetic selection, assisted reproductive technologies and optimized reproduction ...

The organs of a body are a spatial division of labour, one created by different genes being turned on or off in different cells. The same process serves to give individual lives a division of labour ...

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 ...