Answer:
What scientists might call your pooch.
A horrid monster hides from the day, with many legs and many eyes. With silver chains it catches prey. And eats it all before it dies. Yet in every cottage does it stay. And every castle beneath the sky.
While I did live, I food did give, which many one did daily eat. Now being dead, you see they tread me under feet about the street.
In all the world, none can compare, to this tiny weaver, his deadly cloth so silky and fair.
I am wingless but airborne, and when I meet your gaze tears will fall from your eyes. What am I?
When is it bad luck to see a black cat?