GMAT Reading Comprehension (RC) | Careful observers of wildlife along unspoiled ....

Thanks all for the discussion... I have updated the OA and OE from Kaplan for the passage in the initial thread.

I feel that first was easiest(as everyone cracked it) and last one was really a big toughie for everyone(as none of us commented could crack it). I am fine with first 2 questions, but still without direct approach for last question. Let me know any alternate strategies for third question, if stumble across.

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