A handout photo from the Taipei Zoo showing Yuan Zai (Tiny Ball), the first Taiwan-born panda, being treated to a birthday cake in celebration of its fourth birthdayon Thursday.
Yuan Zai's parents, Tuan Tuan and Yuan Yuan, were given to Taiwan by China in 2008.
The cake was made of Yuan Zai's favourite foods, such as carrots, grapes, bamboo leaves, apple and pineapple.
