atures , ▁r anging ▁from ▁sab er - to oth ed ▁t ig ers ▁to ▁vel oci ra pt ors , ▁st alk ▁tribe ▁members ▁for ▁food ▁or ▁v ici ously ▁defend ▁their ▁young ▁when ▁they ▁perce ive ▁danger . ▁ ▁E volution ▁or ▁ext inction : ▁Play ers ▁could ▁choose ▁which ▁type ▁of ▁people ▁to ▁be ▁included ▁in ▁their ▁tribe . ▁Some ▁examples ▁included : ▁hun ters , ▁myst ics , ▁and ▁f igh ters . ▁Each ▁type ▁benefits ▁the ▁tribe ▁in ▁its ▁own ▁specific ▁way . ▁ ▁Early ▁images ▁at ▁E 3 ▁showed ▁extreme ▁clar ity ▁and ▁self ▁sh ading ▁but ▁early ▁reviews ▁called ▁the ▁artificial ▁intelligence ▁the ▁most ▁impress ive ▁game ▁aspect . ▁According ▁to ▁Game Sp ot . com ' s ▁information ▁on ▁BC , ▁the ▁game ▁would ▁have ▁had ▁a ▁food chain , ▁like ▁Peter ▁Jackson ' s ▁King ▁Kong : ▁The ▁Official ▁Game ▁of ▁the ▁Movie , ▁in ▁which ▁each ▁part ▁would ▁have ▁been ▁subject ▁to ▁being ▁e aten ▁by ▁something ▁higher ▁on ▁the ▁food chain . ▁In ▁addition , ▁the ▁din osa urs ▁and ▁other ▁cre atures ▁would ▁have ▁been ▁intellig ent , ▁interact ing ▁with ▁each ▁other , ▁thus ▁acting ▁independently ▁of ▁the ▁player . ▁It ▁would ▁have ▁been ▁possible ▁to ▁affect ▁the ▁game ▁world ▁as ▁a ▁whole , ▁leading ▁some ▁people ▁to ▁comment ▁on ▁the ▁driving ▁of ▁certain ▁species ▁to ▁ext inction . ▁Other ▁activities ▁would ▁have ▁included ▁capt uring ▁and ▁training ▁certain ▁animals ▁to ▁use ▁against ▁trib al ▁enemies . ▁ ▁As ▁part