When lions smell urine, they tilt their heads up and then bare their teeth by lifting up their top lips. This interesting lion behaviour is called a flehmen grimace or flehmen response and make the animal look like it is smiling. ... This organ decodes the pheromones and other scents left behind in the urine.

What does it mean when a lion shows teeth?

This is a small area in the roof of the mouth that allows a lion to 'taste' smells in the air. By showing their teeth and sticking out their tongues, lions are able to catch hold of smell to work out if it's coming from something worth eating.

Why do male lions snarl at Cubs?

A strong roar is a pride male's first line of defense against being challenged by a younger, stronger male. Prides can also roar as a group with each voice being individually distinctive. Young cubs may join in the group roar of their pride with their own little mews.