Could two men have children one day? Chinese scientists have bred mice without mothers. Some think this has huge implications for our emotional, social and psychological lives.
Lab creates mouse with two fathers

Glossary
Bi-paternal - Having two genetic fathers.
Embryo - A fertilised egg that is developing into a foetus.
DNA - Deoxyribonucleic acid is the material in an organism that carries genetic information.
Bi-maternal - Having two genetic mothers.
Henry VIII - The King of England from 1509 to 1547, best known for his six wives.