Isotope analysis of the teeth confirm this assumed terrestrial way of life. In the case of  Numidotherium  compared to Barytherium or Moeritherium, these resulted in more fluctuating ratios of the oxygen isotope O18, which in the latter two are significantly more balanced due to their semi-aquatic way of life.
Isotope analysis of teeth confirms a terrestrial lifestyle. In comparison to Barytherium or Moeritherium, the ratios of oxygen isotopes O18 in Numidotherium are more variable, while the latter two exhibit more balanced ratios due to their semi-aquatic nature.