Hannibal only got one elephant over the Alps out of roughly 40 he started with when he left Spain. Why not look for elephant bones? Those should stand out even better than horseshit.
http://www.rawstory.com/2016/04/how-anci...-the-alps/
http://www.rawstory.com/2016/04/how-anci...-the-alps/
Quote:How ancient horse-dung bacteria is helping us locate where Hannibal crossed the Alps