A recent Trump executive order defines sex based on gamete size. But the order oversimplifies genetics, hormones and reproductive biology.

This valuable study reports on the critical role of ANKRD5 (ANKEF1) in sperm motility and male fertility. However, the supporting data remain incomplete. This work will be of interest to biomedical ...

While sexual reproduction is the predominant strategy among animals, some species have evolved the ability to reproduce asexually ...

The U.S. Department of Health and Human Services issued guidance updating its official definitions of terms such as sex, ...

The first month of President Trump’s second administration began with a flurry of Executive Orders, many of which directly affect various ...

The first month of President Trump’s second administration began with a flurry of Executive Orders, many of which directly affect various ...

Domestic cats are sterilized via ovariohysterectomy, but this procedure is not feasible for the larger population of free-roaming cats. Here they show that injecting high levels of anti-Müllerian ...

Hypertension in pregnancy contributes substantially to maternal morbidity and mortality, persistent hypertension, and rehospitalization. Hypertensive disorders of pregnancy are also associated with a ...

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A flamboyant splash of colour on any pond, this eye-catching waterfowl is one of the most beautiful species of birds on the planet. The Mandarin Duck is renowned for its striking, colourful plumage, ...

Unless the drug is a good counterfeit, the identification process is very straightforward. By law, every tablet or capsule approved by the Food and Drug Administration (FDA) must look unique from all ...