While humans feature a sophisticated sense of smell, insects have a much more basic olfactory system. Yet they depend upon smell to survive. Scientists have figured out how fruit flies use a simple ...

Mice make use of rapid nerve cell interactions in the brain's smell center to distinguish one odor from another, a new study shows. Both mice and humans can rapidly identify odors, researchers say, in ...

Whether it’s the wafting aroma of our favorite meal or the dangerous fumes seeping from a toxic chemical, the human sense of smell has evolved into a sophisticated system that processes scents through ...