Answer:
Hard to catch, easy to hold. Can't be seen, unless it's cold
I am mother and father, but never birth or nurse. I'm rarely still, but I never wander.
What is lengthened by being cut at both ends?
Bright as diamonds, Loud as thunder, Never still, A thing of wonder.
Voiceless it cries, wingless flutters, toothless bites, mouthless mutters.
People take me on walks and I run and have fun. What am I?