Subject: What animal lives in a prairie and in a dirt mound

Our class discovered a mound of dirt in our school prairie (an lllinois 
prairie near Chicago). The mound is about 12 inches high. It is about 3 
feet wide and 3 feet long. There are three holes in the mound. The diameter 
of these holes is about 2 inches. Did an animal make this mound? Will this 
mound and who lives in it harm any of our prairie plant?

Re: What animal lives in a prairie and in a dirt mound