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• World's 2nd smartest creature :raven
○ [BH]&[TB]: raven use logic, surpass great apes
§ Experiment :
□ Complex factions
® e.g. pull up string, place a loop…
® Other animal : be taught
® However raven : do it straight away
□ Others: carry complex actions: nest-building
® However : genetical
□ By contrast : use logic
® Test action in mind
® Others: Lack or limited extent
§ Experiment 2: let others do work
□ e.g. bring wolves and foxes
□ Birds also
® e.g. NC crow: use leaves
§ However :[H]not cleverest
□ Different types
□ One of the very smartest creature
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