I'd never gotten into this before you mentioned it... but after you mentioned it, I got overwhelmed with an image immediately.
There were 12 animals.
A cat, panther, parrot, snake, jaguar, and squirrel were on my side... it was almost like they were standing by to defend me.
On the opposite side of us, I saw a dog, pelican, dove, peregrin falcon, pig, and rat that looked like they wanted to attack us... and they seemed to be defending a shadowy figure with glowing red eyes that was obscured in darkness, pointing a spear that was pitch black (like itself) at me and laughing.
Does this mean anything to you?
well if you feel that it's significant then it is.
it is hard for me to say exactly what kind of relationship the animals have to you. and by the way, my ideas are all very tied to native american beliefs (so i will talk about medicine and things like that), but i think
personal interpretation is essential, and your own insights may not follow native american ideas. but here are some thoughts i have:
the animals on your side could be protective spirits. protective spirits are fairly powerful spirits that watch over you. they are not a part of you, they are not a manifestation or representation of you, they existed before you were born.
but they could also be your spirit guides, representations of
you, an actual part of your self.
really, only you can decide what your relationship to the animals is. do the animals on your side feel like
a part of you, or do they feel
seperate from you?
as far as the aggressive animals, it seems like they are probably
not a part of you. again, you have to decide if they are or not. it is possible they are shadow guides (representations of your hidden and negative qualities) but shadow guides are not generally
aggressive.
also, representations of your self (shadow guides, spirit guides) are essentially never led by a dominant spirit, and don't have a hierarchy. so the aggressive animals having a leader, or a spirit working behind the scenes, implies to me that they are
outside forces, not a part of you.
the identity of the animals gives you clues about them, so the one dark spirit with it's identity concealed is pretty significant. it could mean you are not ready to know the identity of it, or that you just don't know yet. it could be that it is
concealing it's identity from you. if it is concealing it's identity, you will take it's power away from it by revealing/learning it's identity. if it's concealing it's identity; once it's identity is known to you, it will either be impotent and weak and retreat from you,
or it will be powerless but become super-aggressive and essentially attack you until it wins or is defeated. i can't really help you with identifying it without more information, and honestly it will eventually be up to you to reveal it's identity, no one else can.
here is what i can remember about the medicine's asscoiated with the animals you mentioned:
cat: cat's medicine is emotional, it is emotionally independant and self-suficient, it may enjoy or dislike emotions of others, but it
does not need them.
panther: i don't know anything about the panther specifically. but large cats are usually associated with physical power, but not raw untamed power. they are power that is controlled, channeled, graceful physical power.
large cats also have the medicine of the future, they step into the future confidently and fearlessly.
parrot: i don't know specifically about the parrot. bird medicine is too varied to describe as a whole, it varies
a lot from bird to bird.
snake: snake medicine is actually considered very powerful. it is the medicine of transformation and radical change, not so much 'becoming a new person', it is more like revealing your true self that is hidden inside you. the reason snake is associated this way is because it sheds its skin, it becomes sort of refreshed and begins anew.
jaguar: i don't know specifically.
maybe similar to the panther.
squirrel: i honestly don't know about the squirrel.
dog: the dog is a protector and it's medicine is protection and unconditional love. so the fact that you said it is aggressive is very significant, since the dog is associated with very intense love an dedication. a dog that is a shadow would be associated with hate and extreme aggression.
pelican: the pelican's is another animal with fairly powerful medicine, and it's one that i actually know some about, haha! it's medicine is sacrifice, sacrificing itself for others, and also loss, or more specifically the pelican's medicine is the ability to recover from a profound loss. part of the pelican's medicine is that it has the ability to essentially skirt the edge of destruction, to come so close to falling but to eventually perservere and resurface or emerge very strong.
dove: well the dove really is associated with love and peace, gentleness and affection. but it's medicine is also that it is a very strong messenger, it is considered one of the messengers of the spirit world.
if you are seeing a dove as aggressive that is seriously very troubling, from a native american viewpoint. the dove's medicine is so powerfully
positive that to be aggressive and negative it would have to be incredibly corrupted. really, a dove being a negative spirit is extremely rare and honestly is
much more ominous than a physically aggresive spirit, like a mountain lion.
peregrin falcon: falcon's are another powerful medicine. their medicine is the medicine of the soul. they have the ability to heal the soul, and they protect and guide your soul when you die, they lead it to it's final destination. the
peregrin falcon, specifically, teaches you how to develop your own rythym, how to act in your own natural rythym, which causes you to be effective and fluid and quick in your actions.
a shadow falcon is essentially trying to damage your soul, trying to lead your soul astray. and a shadow
peregrin falcon is trying to disrupt your rythym, throw you off kilter and make you clumsy and unresponsive.
pig: my memory of the pig is that it teaches you how to focus and how to see the truth.
rat: the rat's medicine is very defensive. it essentially makes contingency plans for everything. it plans for the worst, but rather than being bogged down by fear it goes nuts by taking every possible precaution. the key with the rat is the context of it. if it really is an emergency situation, the rat is like some kind of master-plan badass that has already taken every step and done all the preliminary work. but if everything is calm and going well, the rat is detrimental, because it is basically hoarding and being greedy.
anyway, those are classic native american medicines. so if you are skeptical or don't feel a connection to native american beliefs, take it with a grain of salt.
sorry for the crazy long-ass post.

i don't know, what can i say... i am in to animal guides....