t ong ▁sle eps ▁during ▁the ▁day ▁in ▁a ▁dom ed ▁nest . ▁The ▁n ests ▁are ▁made ▁with ▁dens ely ▁w oven ▁grass , ▁leaves ▁and ▁sh red ded ▁b ark ▁in ▁a ▁shelter ed ▁site ▁such ▁as ▁a ▁shall ow ▁de pression ▁in ▁the ▁ground ▁or ▁under ▁a ▁fallen ▁log ▁or ▁cl ump ▁of ▁veget ation . ▁The ▁animal ▁uses ▁its ▁cur ved ▁pre hens ile ▁tail ▁to ▁transport ▁the ▁nest ing ▁materials ▁to ▁the ▁nest ▁site . ▁The ▁animal ▁only ▁uses ▁the ▁nest ▁for ▁one ▁or ▁two ▁night s , ▁before ▁it ▁moves ▁on ▁in ▁search ▁of ▁food . ▁ ▁Like ▁other ▁bet t ongs , ▁the ▁eastern ▁bet t ong ▁is ▁a ▁continuous ▁bre eder , ▁producing ▁young ▁throughout ▁the ▁year . ▁The ▁gest ation ▁period ▁is ▁ 2 1 ▁days , ▁after ▁which ▁the ▁infant ▁( re ferred ▁to ▁as ▁a ▁" jo ey ") ▁remains ▁in ▁the ▁p ouch ▁for ▁an ▁additional ▁ 1 0 5 ▁days . ▁ ▁Th re ats ▁While ▁the ▁main land ▁population ▁became ▁ext inct ▁in ▁the ▁ 1 9 2 0 s , ▁the ▁Tas man ian ▁population ▁has ▁remained ▁secure . ▁One ▁concern ▁is ▁that ▁most ▁of ▁the ▁bet t ongs ▁are ▁found ▁on ▁private ▁land , ▁with ▁only ▁two ▁groups ▁found ▁within ▁res erves . ▁Red ▁fo xes ▁are ▁a ▁major ▁threat . ▁The ▁International ▁Union ▁for ▁the ▁Conserv ation ▁of ▁Nature ▁has ▁raised ▁the ▁threat ▁status ▁for ▁eastern ▁bet t ongs ▁from ▁least ▁concern ▁to ▁near ▁threatened .