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Tigers can make funny faces
These large cats are territorial animals and they mark their territory with urine. Adult male tigers often fiercely protect their territory from other adult males, a trait not as potent in adult females who might just avoid other females if they enter their particular territory.
To understand the territories of the various animals living in the area, they go about smelling the urine. One of the funniest facts about tigers is that they make a funny face if this happens. This face is referred to as a flehmen response. The tiger curls back its upper lip and show its upper teeth. This is something common among many mammals, especially felids and ungulates.

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