Animals focus smell as well as vision

Animals can focus their sense of smell in much the same way as humans focus their eyes, helping them detect predators and search out food.

Psychopaths have poor sense of smell

There may be an easy way to discover whether your boss really is the psychopath you think he is - just ask him to help you choose aftershave.

DARPA plans to sniff round cities to detect chemical attack

We're not sure if this is genius or utter lunacy - actually, we think we've got a pretty good idea - but the Defense Department has decided that it wants to know how each major city in the US smells, in order to help detect chemical attacks.

Modified fruit flies can smell light

Scientists have genetically modified fruitflies to let them smell blue light - it smells of bananas to them, apparently.