Elephants have the highest count of olfactory receptor genes of any species tested to date. This suggests that they may be the best smellers in the animal kingdom.
New research is narrowing the gap, creating technology with the detecting capabilities of canines but without the downsides of relying on a biological system.
You’ve probably had your hand luggage swabbed after walking through the metal detector at the airport. Whatever molecules were picked up by the swab have been separated using gas chromatography. So how…
As the holidays draw near, many of us will hop on a plane to visit friends and family – or just get away from it all. Some will be subjected to a swab at the airport to test clothes and baggage for explosives…