Hormones may affect girls’ interests, but not their gender identity or playmates

Prenatal exposure to male hormones influences which activities girls are interested and engage in, but the effects of those hormones don’t extend to gender identity or who they socialize with, according to Penn State researchers. The researchers explored how prenatal exposure to androgens — hormones that are typically higher in males than in females — […]

Mammalian development: Blastocyst architecture

The mechanisms that underlie early embryonic development in humans and cattle are very similar. Therefore, Ludwig-Maximilians-Universitaet (LMU) in Munich researchers argue that bovine embryos might well be a better model for early human development than the mouse system. Many fundamental aspects of the early stages of embryonic development in humans are found to be conserved […]