AdvertisementWhen Detecting Land Mines, The Nose Knows — Or, In This Case, The TrunkJuly 25, 2015NPR StafffacebookEmailAn elephant in South African offers an up-close glimpse of its prodigious instrument. According to Sean Hensman of Adventures with Elephants, trunks like this one could help the U.S. Army develop a better landmine sensor. (Barcroft Media/Landov)