From left to right, they are called Beibei, Jingjing, Huanhuan, Yingying and Nini respectively. The pronunciations of the five names form the homonym "Welcome to Beijing".
The symbolic meanings of the five Fuwa are as follows: (Huanhuan is not an animal)
Fuwa Beibei?
Representative: fish?
Moral: passing on wealth?
Fuwa Jingjing?
Representative: giant panda?
Moral: Give joy?
Fuwa Huanhuan?
Representative: Olympic flame?
Moral: bring passion?
Fuwa welcomes you?
Representative: Tibetan antelope?
Moral: Show the Green Olympics?
Fuwa Nini?
Representative: Swallow?
Moral: Send joy.