Check out these ball pens images:
London Zoo – Tiger – ball with scratch marks
Image by ell brown
This is the tiger pen at London Zoo.
The tiger was having some shade, and didn’t come out of where it was.
There were a couple of balls in the tiger area. Clearly showing signs of claw marks and bite marks.
Dangling – 010308
Image by zarprey
colored pencil, ball point pen, pen