we rarely see anything other than a bat. this is because there is nothing for them to eat. people ask us all the time if we see rats in the mines cause that was a big thing when they were operating. but thats because they ate miners lunches and leftovers. they were their friends. now theres nothing for them to eat so theres nothing in the mine in terms of living creatures. with the exception being, twice saw a mouse one was white, once saw a fox, but that was near the opening and see some bugs but thats near the opening. we see spiders in mines that "wash open" that start out as small holes but "become larger" from rain water or something
usually they are just in the hole. once in like i said we rarely see any signs of life, other than mine researchers of course!