Brown hyaenas were aged on the basis of tooth eruption and wear and five age-classes were recognised.Weights and seven different body measurements were recorded click here from 38 immobilised hyaenas.Full size is reached at the age of 30 months, but age-class 5 animals were significantly lighter than were animals from the other adult age-classes.This was probably due to the worn down premolars of old animals resulting in less efficient bone chewing.
With a few puzzling exceptions the sizes of brown hyaenas from different parts click here of their distribution range are similar.