Answer:
Slithery critters with a taste for dirt.
People take me on walks and I run and have fun. What am I?
What kind of dog keeps the best time?
When I'm metal or wood, I help you get home. When I'm flesh and I'm blood. In the darkness I roam.
The homes of tiny creatures that collect in corners if you aren't vigilant about dusting.
What is so fragile that saying its name breaks it?