Thomson's gazelle (Eudorcas thomsonii). It inhabits plains and acacia savanna in Kenya and Tanzania; because it is resistant to dryness, many remain in those areas. It is small, both males and females may have horns, and it is a grazer that primarily eats short grasses. Females form herds of several dozen, and males display territorial behavior. When detecting danger they may perform stotting (pronking). Breeding occurs about twice a year, with a gestation of about six months resulting in one offspring. Population numbers are declining, and the IUCN lists it as Least Concern.