A Reader Request: Black, Furry, Scurrying Creatures

Everytime we saw these creatures, it would be while driving between our homes, usually after the sun set. We would see something in our headlights, on the side of the road, and it would either dart across the road or back into the bushes before we were able to stop or observe it closely. I remember them to be black, round, and furry like kittens. They would be all sorts of sizes, from very very small (little bigger than a mouse) to big as a kitten. They moved very quickly, and must move close to the ground because neither my friend nor I ever observed any feet. We never saw any eyes, ears, or tail on these creatures either. It was like a black ball of fur scurrying around. In my friends words she says, “I remember driving with you and those little things were darting in front of the car. They were black and fuzzy like kittens, only they ran super fast and low to the ground.”

If there are any other accounts of creatures like these, or if you perhaps can give suggestions to what these things were, I’d be happy to hear any and all of them! Thanks!!