In the Pleistocene of The Netherlands, about sixty or seventy species of large mammals have lived. Some of these during the interglacials (warmer periods between the times of ice), others in colder circumstances. Form hippos in the IJsel river through woolly rhinos. Also the land that today is the North Sea was populated by many species. Most are extinct now and some still occur today, be it that several species moved their habitat to more suitable places than The Netherlands.
The right hand menu enables a view on the several groups and species. Once every while new species are discovered and a single species, such as the scimitar-toothed cat, appears to have lived in other periods than thought before.