Complex sentence: Although there is no information on its home range, it has been inferred to have a high population density as, in 1983, Gao recorded that in three hours in the field, four people could find 20 or more Yarkand hares.
Split into simpler sentences: Although there is no information on its home range, a high population density wasprevioulsy inferred. In 1983, Gao recorded that in three hours observing in the field, four people could find 20 or more Yarkand hares.