title: Rhinoceros (genus)
text: The genus Rhinoceros of the family Rhinocerotidae includes the one-horned rhinoceroses, of which there are two extant species: the Indian rhinoceros (R. unicornis) and the Javan rhinoceros (R. sondaicus). These are characterized by one horn (actually thickly matted hair) on the upper snout.
  
  Rhinoceroses