Uploading this for _barb_ as her Admin Admired blog pick for this week.
Anyone who has cats will recognize this head-rubbing greeting. These two tigers - Jammu and Pandu - are brothers. Look closely at the one on the right and you can see Jammu's tongue sticking out - I watched him for about an hour and his tongue stuck out most of the time! (The Houston Zoo told me later that he has always done that.)