Nadine

Nadine is a female penguin who was first introduced to give the central park zoo at least one female and since then as become a member of the penguin unit(originally, she was sent for a previous breeding program because she was the only penguin in her zoo, But the program was aborted when her exhibit was getting more penguins from other zoos, and had been brought back), mainly through martial arts.

She has a relationship with Private, as both had a crush on each other.

Biography
Nadine mentioned she was born in the wild at one point, while in the zoo, she is called Sandra by the zookeepers, but it is not known how she ended up in the zoo, it is also unknown which zoo.

She was the only penguin in her Habitat back then, and the zookeepers attempted to breed with Skipper, Kowalski, Rico or Private at the central park zoo. She does fall in love with Private(who falls in love back), but both wanted to avoid mating, Private was nearly forced into mating with her almost did had not for the other penguins help. Later, the breeding program was canceled after her habitat got new penguins, and she herself was taken back, but still keeps in touch with Private.

Personality
Nadine is portrayed as shy, compassionate and sometimes ignorant. When she first came to the central park zoo, she was scared of the new place, but accustomed later. She also cares deeply for the lives of others. She is also a thinker.