What Came Towards Us?

So this is my first story that I post here. I have been reading stories here for about 2 years now, and decided that it's time to tell mine.

So this happened to me and my friend J when we were younger, maybe 10 years ago. We lived close to each other in a smallish neighbourhood and we used to spend time everyday either her house or mine.

One evening in winter (it gets very dark in here at winter, there is daylight only like 4-6 hours a day) we were hanging out at J's house, and about 7pm I had to go home. She said that she'll walk me halfway home because it's so dark.

So we were walking and talking about what should we do at weekend, when I suddenly noticed something coming towards us next to the road in a ditch. There were only moonlight and some street lamps shining some light.

I stopped and asked J what is that. She looked and we both got scared and started running back to J's house, because it was only 100 meters away. So when we got back at J's yard we started talking and wondering what it was.

We both saw something like a huge black dog, but it didn't make any sound. And it was strange that even though the moonlight was shining straight down and there was no big trees or anything that could block the light, the dog's fur did not shine or anything when the moonlight touched it. It was all just black. And when we started running we saw that it crossed the asphalt road running, and still no sound at all, even though it was very big. And when you walk a normal dog, when you walk on asphalt, the dogs nails make a sound.

It was not a normal dog, that I am sure about. We still wonder sometimes what could it have been...

Has anyone else experienced anything like this or seen similar thing?