Who Am I? I'm a Mystery!

It's been awhile since we had a Who Am I? posting...so let's see if you can guess the name of this mysterious tiger! 

"Did you know I was named after a military vehicle?  I am a large tiger with huge shoulders and chest.  When I first arrived I was intimated by my new environment and would charge the fence if people got to close to me.  Now I am lovable tiger who thrives on attention.  Do you know who I am?"

 

First person to identify me wins bragging rights.  Simply send your response to our special animal email account and if you are the first person to respond to the challenge, you win!  Volunteers, if you know the answer to this question, please wait until Friday before announcing this mystery tiger's name. 

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