Onya-Birri, the koala
Meaning "Ghost Boy" in the aboriginal language, this albino koala was born in the San Diego Zoo, in 1997, where he currently resides. His fur had an orange tint when he was a baby, but later on, he started losing his color. He feeds mostly on eucalyptus leaves and spends most of his time sleeping or eating, making him all the more adorable to visitors.