I'm a Penguin:

Now you see it, now you don't. Aggressive yet gentle, outgoing but shy, stable yet flighty -- everyone sees the penguin in a different way. It's that black and white thing -- the penguin only reveals the side that it wants to you to see. So, whether you like this darling-devil or not, you have to concede that it's a fascinating and enigmatic individual.
For penguins are birds condemned to live out their days on the ground. Unable to fly, their excess energy has no outlet save their creative talents and emotional outbursts. Penguins are poetic, artistic, and intellectually gifted, and as writers, penguins have no equal. But, if unable to channel their impulses in a positive way, the resulting turmoil proves damaging to their relationships and careers.
With a natural aptitude for languages, penguin personalities dominate the world of publishing as writers, editors and journalists. A strong sense of drama draws them to the theater and cinema, although unlike typical bird personalities, they avoid the spotlight unless they're able to hide behind the characters they play. Once on stage however, they prove to be excellent performers with their multifaceted personalities conveying the full gamut of emotions.
However, a lack of confidence affects their work and penguins tend to give up too easily. So work never dominates their lives and they always put their families first. Those intimate with their penguin personality are impressed by their unswerving loyalty. They are sentimental at heart and always remember anniversaries and the birthdays of nieces and nephews. With a strong compassion for others, they place their family's needs ahead of their own but often end up being taken advantage of.
In matters of the heart, penguins connect poorly with other bird personalities who look down on them because of their terrestrial connections. Mammalian personalities also treat them with suspicion too, finding them to be flighty and unpredictable.
Since penguins have the coldest feet in the animal kingdom, it's no surprise that within its conflicted bosom there beats the warmest heart of all. Unfortunately, most of us will never experience this gentle compassion, for penguins ration their love only to family and close friends.