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==Introduction==

==Introduction==

Olfaction is the sense of smell, which is the ability to perceive and distinguish odours. Most mammals have a good sense of smell, but most birds generally do not. The sense of smell is well-developed in carnivores (predators) and ungulates (prey). Fish also have a fairly well-developed sense of smell.

Olfaction is the sense of smell, which is the ability to perceive and distinguish odours. Most '''mammals''' have a good sense of smell, but most '''birds''' generally do not. The sense of smell is well-developed in '''carnivores''' (predators) and '''ungulates''' (prey). '''Fish''' also have a fairly well-developed sense of smell. Olfactory and gustatory receptors can combine to contribute to flavour.

 

Olfactory and gustatory receptors can combine to contribute to flavour.

==Structure==

==Structure==