Hi,A few weeks ago an animal was in my yard.It was all curled up,brown fur, with a possum like tail. Probably the size of a small dog. I just assumed it was a possum, brought my dog in and about an hour later it was gone. Yesterday while walking we saw a possum and the fur coloring was nothing like what was in my yard. Now I'm wondering what it was? Are possum brown and do they curl up? thanks