I found this jelly substance near one of my trees. It is deep in the roots. I would like to know if this is some type of poison that can hurt my pets. I found this gelatin substance in my tree from far away, and it looks like broken glass - extremely shiny. When you get close to it, the gelatin-like substance is about a foot in the ground next to the tree. None of the other trees have this. It's just this particular one. I have two dogs and I'm wondering if this is poisonous, though it didn't seem to have an odor and it's clear.