A soul isn't a metaphysical thing, it's one's ability to influence the world. Some can have multiple, some can have none, plants and animals have them, and some objects even too. They can be created but they can never be destroyed. They lack a conscious but have a will. Having one makes you not special, you have to use it. The more you use it, the more control you gain, but the more it gains over you.

Yes, I believe humans and animals have a soul. Certainly believe so after reading books by Elisabeth Kübler-Ross.

I like to see it as what we call a soul is simply the hashcode of our being. They're technically not unique, but as you're the only you they are. It's not some guiding spirit to your conciousness, it's who you are. The choices you make, the experiences you've had, the things you've thought and the conclusions you've reached, the sum of your being, encoded.

There was a woman who said during an alien abduction that she saw a glowing light taken out of the top of a dying man and put into a younger clone of himself. Where afterwards the old body died. So talking about this as if what she said did indeed happen:

If it's possible to transfer consciousnesses between bodies, the collection of electric energy in our body is our soul I guess, and the rest of us comes from the unique layout of our cells/nervous system which this electric energy runs along.

Yes, when I meditate I can percive the soul of myself with my consciousness. This cannot be explained or thought, it can only be experienced. And as I am a typical human, I extrapolate that every human has a soul.