Lifespan
It is difficult to determine how long antelope live in the wild. With the preference of predators towards old and infirm individuals, which can no longer sustain peak speeds, few wild prey-animals live as long as their biological potential. In captivity, wildebeest have lived beyond 20 years old, and impalas have reached their late teens. In the wild, few individuals of prey species live to old age, as the old and weak are easier prey for predators; antelopes are no exception to this rule.
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