Wolves howl with local accents

Available for over a year

European and American wolves howl in distinct ways, and canine vocalisation expert Dr Holly Root Gutteridge has spent her life tracking them to record their calls. Audio: European wolf howl © MacAuley Library, Ronald Schassburger. American Wolf Howl, Dr Holly Root-Gutteridge (Photo: a lone wolf in the snow. Credit: Rory Galloway, BBC)