They are normally seen as membranes that cover important organs but the study of bacterial capsule polysaccharides is one that is being conducted by the medical community to determine the role this has in disease. Bacterial infection is something that kills millions of people each year.
The Government's Marriage (Same Sex Couples) Bill received Royal Assent on 17th July 2013, having been passed by both Houses of Parliament. The Bill followed a Government consultation in 2012.
Supporters of same-sex marriage celebrate outside of the Supreme Court in Washington, Friday June 26, 2015, after the court declared that same-sex couples have a right to marry anywhere in the US. (AP Photo/Jacquelyn Martin) ORG XMIT: DCJM111 Jacquelyn Martin, AP.