Better Biofuel? Ask a cow... - Naked Scientists NewsFLASH - 31.01.11

In this NewsFlash, we find out why our model of the circadian clock might be wrong, how the bacteria that live inside a cow's gut could help make better biofuels, and why groups of animals make better decisions. Plus, how some bacteria make rapid changes to their genome - avoiding the immune system as well as preventing us from making effective vaccines.