Tagged With sense of smell

Dogs are equipped with a powerful sense of smell, but scientists haven't been sure if our canine companions are capable of linking an aroma or scent to a physical object. New research suggests this is very much the case, and that dogs form a mental picture in their mind of the target when they're tracking down a scent.

Whenever you say a colour name, you're referring to specific properties of light waves. Sounds work the same way, but with properties of compression waves. But what about smell? With all of the different scented chemicals out there and their complex interactions, it's been impossible to create a simple scale to describe the odours or noses detect.