Why do cats make a funny face?

[Sassy]

You may occasionally notice your cat making a strange face: a lip-curling grimace with the mouth half open, a wrinkled nose, raised chin and a gaping tongue. It is usually accompanied by a hypnotic stare. This is known as the Flehman response and, although it may be disconcerting, your cat only makes the face when he wants to get a better smell of something, usually the pheromones of another cat.

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[CrWoodyspets]

My cat does that a lot actually, I find it quite funny!

[wishbone]

Hee hee that was so cool and informative article, I should start observing more our cat.