May represent your own physical characteristic, primitive desires, or sexual nature, depending on the qualities of the particular animal.
Animals symbolize the untamed and uncivilized aspects of yourself.
Carl Jung said that all wild animals indicate latent affects (feelings and emotions that we do not readily deal with).
They are also symbolic of dangers (hurtful and negative things) being “swallowed” by the unconscious.
The interpretation of the animal in your dream depends on your relationship with it in daily life. Animals represent the qualities in our character or specific aspects of our personalities.
They could symbolize our more intuitive and instinctive parts, or they could serve as messengers for the unconscious.
Please look up each animal individually by name.
Animals most often represent that aspect of ourselves, or parts of our personality, that are present in our ordinary life. It is generally given that the more primitive the animal then the more primitive or deeper the layer of consciousness that represents.
To dream of being bitten by an animal may be a manifestation of a fear of animals.
What the animal is doing in the dream is also very important, if say, a pig is dancing, then maybe that means that the side of you that likes to over indulge is very happy with that.
But if the pig were crying then that might indicate an inner urge to curb and over indulge in habit.