Most species on Earth exist as two biological sexes, and the exchange of genes between males and females is vital for their ...

There’s plenty of rough sex in the animal kingdom, but dinosaur copulation may have been so violent that it literally broke ...

Now, a growing body of scientific evidence shows hundreds of genes act differently in the brains of biologically male or ...

Evidence links the gut microbiota and fertility to women’s reproductive health, influencing hormone metabolism, and ...

Ironically, though, that’s wonderful news for palaeontologists, as the love scars left behind by these prehistoric couplings ...