All-female species have been long thought of as evolutionary dead ends – but one fish has defied the odds to live without males, revealing new clues to how genomes stay healthy.

For most animals, survival is a game of chance. Sexual reproduction mixes DNA, keeping the gene pool diverse and giving evolution more options. When a species stops mixing genes, it usually goes ...

In the mystical world of evolution, the extinction of male species has always been seen as an end of evolution, but this rare ...

Like the Ancient Greek warriors from which its name derives, the Amazon molly is an all-female fish species that has reproduced without males for over 100,000 years. It relies on sperm from related ...