Today’s Riddles: August 5, 2011:

Wracked Features:
I herald the darkness which descends on all creatures;
You will know my approach by moans and wracked features.
I visit the hippo, hyena, and horse,
But never go near snails and spiders, of course.
I would circle the glove, leaping one to the other,
Should all the world’s people ever clasp hands together.What am I?
I am a Yawn.