Xerus (pronunciation: zEr'us), was a suborbital spaceplane concept proposed by XCOR Aerospace. It would be capable of transporting one pilot and one passenger as well as some science experiments and it would even be capable of carrying an upper stage which would launch near apogee and therefore would potentially be able to carry satellites into low-Earth orbit.

Energetic costs of parasitism in the Cape ground squirrel Xerus inauris
Juvenile behaviour in the African ground squirrel, Xerus erythropus (E. Geoff.).
Mapping the Landscape of Fear of the Cape Ground Squirrel (Xerus inauris)
The Social Organization of the Cape Ground Squirrel (Xerus inauris; Rodentia: Sciuridae)
Mating tactics of male Cape ground squirrels, Xerus inauris: consequences of year-round breeding
The Parasol Tail and Thermoregulatory Behavior of the Cape Ground Squirrel Xerus inauris
Bioenergetics, thermoregulation and urine analysis of squirrels of the genus Xerus from an arid environment
Delayed maturity, group fission and the limits of group size in female Cape ground squirrels (Sciuridae: Xerus inauris)
Effects of storage treatment on fecal steroid hormone concentrations of a rodent, the Cape ground squirrel (Xerus inauris).
Phylogeny and historical biogeography of African ground squirrels: the role of climate change in the evolution of Xerus.