Am I suppose to pick a random animal? Or perhaps I should use my personality type in determining which animal I might have been if I was actually brought into the world as an animal. I think the later makes more logically sense, hence, i'll approach the question using my personality type in transforming myself into an animal.
Am introverted by nature, a personality type that enjoys solitude as a perfect getaway and part of everyday life. I like being alone most the time and barely socialize. I tend to be quiet on rare occasions when I hangout with other people. Am not the starter of a conversation, i respond only when spoken to. You can almost find me indoors at all times. I mostly step out when it's necessary or there's an important reason, like errands or picking a few personal things. Plus am Germini by star sign, which means that my periods of solitude always involves me doing one thing or the other, usually involving mental reasoning to help me solve certain problems and also make me a better person.
Drawing from the above, you'd agree that i'm a some what quiet person who keeps to himself most of the time. In line with this, it's conceivable to state that an animal version of myself will have to be one that shares the same or almost every personality trait as that of mine. Hence, i think my animal version will most likely be an introverted animal with solitary behaviors.
I would have chosen a wolf as most people above did given it's introverted nature. But unfortunately, a wolf barely walks, or works alone. Wolves hunt in packs and can found leaving amongst themselves at all times. Hence, I think my perfect match will most likely be a bear or tiger on land, an owl in air and also an octopus in water.
A bear, tiger, an owl and octopus are all solitary animals with introverted personalities. They posses almost every other traits attributed to introverted humans like me. They tend to work alone and make very little contact with other animals except on occasions when it's necessary, occasions like hunting for food, migration, search for mating partners, etc. And even when the meet with other animals outside their comfort zone, they trade carefully and exhibit symptoms of withdrawals from time to time. If I were to be an animal, it definitely will be any of the four animals mentioned above.