Chita is a character from manga Oumagadoki Doubutsuen (or Oumaga Zoo) by Horikoshi Kouhei, a manga about a zoo that is managed by a nutty rabbit+human director, that has magic abilities to turn the animals from the zoo into anthro-like characters.

Chita is one of the animals from this zoo, he was taken from the Saharan desert by Shiina, the nutty director. But as days passed by, Chita, without the need to run and hunt for food, she gained weight and got fat.

More information about this character on the Oumagadoki Zoo Wikia:
http://oumagadokizoo.wikia.com/wiki/Chita