We know that when the Killing curse rebounded on Lord Voldemort, it split a portion of his soul which latched on to the only other living thing in the room - Harry. My question is, are we to assume that there were absolutely no other living creatures in the room at that time? I think it's safe to assume that there were insects, bacteria etc. And they are living, if I'm not wrong. So, is there even a possibility that the soul could have attached to them?
I know it sounds childish, but I was curious. One could say that non-humans in the HP world do not have souls, but that is not the case. We know that members of the Headless hunt, for example ride on ghostly horses and Mopsy Fleabert has written an entire book about animal spirits. So, was the room free from all organisms except Harry and her mother?
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