Of the 15,000 mice housed there in a typical year, most give their lives for humanity. These are good mice and as such won the protection of the animal care committee.
I like to have them wandering around and making me feel that despite being in Greater London, there is a part of wildlife around me that is more impressive than simply mice and rats.
It involves taking a rat kidney and stripping it of its cells, leaving a shell which's then relined with renewed cells from newborn rats and blood vessel running cells from human donors.
A court in Sierra Leone has charged two editors at the Independent Observer newspaper with seditious libel after they published an article comparing the President Ernest Bai Koroma to a rat.