question: 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?
choices.label: A B C D E
choices.text: starter conceptualization yawn mexicans livestock