Releasing Captive Tortoises --------------------------- Under no circumstances should a captive tortoise be released into the wild. Recent studies have demonstrated that all captive tortoises die soon after being released in the wild. Captive tortoises do not adapt well to the rigors of life in the wild and to feeding on native plants and other vegetation. Desert tortoises are territorial and may fight to the death when introduced into an established tortoise's range. Further, captive tortoises may introduce diseases of captivity into the wild tortoise population for which wild tortoises have little or no immunity.