Southern white-breasted hedgehog

The southern white-breasted hedgehog ("Erinaceus concolor"), sometimes referred to as white-bellied hedgehog or white-chested hedgehog, is a hedgehog native to Eastern Europe and Southwestern Asia. 
Description.
It is very similar in lifestyle and appearance to the European hedgehog ("E. europaeus"), but the former has a white spot on its chest. 
Taxonomy.
For a long time these two species were considered to be one. The northern white-breasted hedgehog of Eastern Europe and Russia was formerly recognized as a subspecies of the southern white-breasted hedgehog but newer investigations see both as different species. The southern white-breasted hedgehog and European hedgehog can hybridize.
Behaviour.
Unlike its European counterpart, the southern white-breasted hedgehog never digs dens. It prefers building grass nests in secluded places.