est ). ▁In ▁Si ber ut ▁and ▁Sum atra ▁he ▁investig ated ▁the ▁" Or ang ▁p ende k " ▁a pe ▁man , ▁via ▁the ▁M ent aw ai ▁of ▁Si ber ut ▁and ▁the ▁Kub u ▁of ▁Sum atra ▁(" H un ting ▁the ▁G ug u "). ▁ ▁He ▁crossed ▁the ▁central ▁mountain ▁range ▁of ▁New ▁Guinea ▁and ▁the ▁Tor res ▁Stra it ▁to ▁Australia . ▁He ▁made ▁' first ▁contact ' ▁with ▁the ▁Ya if o ▁people ▁in ▁New ▁Guinea ▁( The ▁Pro ving ▁Gr ounds ). ▁ ▁He ▁crossed ▁the ▁Amazon ▁bas in ▁at ▁its ▁wid est ▁point , ▁ 1 , 2 0 0 ▁miles ▁from ▁the ▁And es ▁of ▁E cuador , ▁through ▁the ▁low land ▁j ung le ▁to ▁M ato ▁Gros so ▁in ▁Brazil , ▁helped ▁by ▁the ▁M ats es ▁Indians ▁( T hr ough ▁J agu ar ▁E yes ). ▁In ▁the ▁C och a ▁Bra va ▁he ▁went ▁in ▁search ▁of ▁t ig ers ▁( The ▁Ra iders ▁of ▁the ▁Lost ▁Lake ). ▁In ▁the ▁Nam ib ▁Des ert ▁( 1 9 9 5 ), ▁he ▁spent ▁three ▁and ▁a ▁half ▁months ▁trav elling ▁with ▁three ▁rel uct ant ▁cam els , ▁learning ▁from ▁the ▁nom adic ▁Him ba ▁tribe ▁to ▁surv ive ▁with ▁little ▁food ▁or ▁water ▁( The ▁S ke leton ▁Coast ). ▁ ▁He ▁crossed ▁the ▁ste ppe ▁and ▁G obi ▁desert ▁in ▁five ▁and ▁a ▁half ▁months , ▁going ▁ 3 , 0 0 0 ▁miles ▁by