1. Expansion, speciation and a change of trophic niche: a case study of the Early Pleistocene ground squirrels Spermophilus polonicus and S. praecox. (2nd January 2021) Authors: Popova, Lilia; Lemanik, Anna; Ulbricht, Arlett; Nadachowski, Adam Journal: Historical biology Issue: Volume 33:Number 1(2021) Page Start: 4 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗