News tagged with rotten eggs

Feast clue to smell of ancient Earth

Tiny 1,900 million-year-old fossils from rocks around Lake Superior, Canada, give the first ever snapshot of organisms eating each other and suggest what the ancient Earth would have smelled like.

Apr 29, 2013 4.4 / 5 (7) 1 | with audio podcast

How cells in the nose detect odors

The human nose has millions of olfactory neurons grouped into hundreds of different neuron types. Each of these neuron types expresses only one odorant receptor, and all neurons expressing the same odorant ...

Nov 14, 2012 4.3 / 5 (3) 0