Will u yawn?

I don't know why everytime I look at this picture, I'll yawn. Even after times by times... I will still yawn. What syndrome is this? Can anyone tell me...?

This is a picture of a Chinese Leopard cub which snarling during a name giving ceremony at the 'Tierpark Hagenbeck' zoo in Hamburg, Germany.

According to the info (Yahoo!), this leopard was born on August 24, 2007.