Well, not necessarily there Nostradomus. People in like times, of the same species, evolving on the same planet...isn't it possible they'd think and act and talk about similar things? Do we find it odd that birds in Asia and birds in North America (taking on the slow, deep, low voice of the mysterious Ancient Alien expert announcer here) "would hunt bugs and food in EXACTLY THE SAME WAY...even though they've never seen those other birds continents away who hunt in EXACTLY THE SAME WAY...?" Of course not. They're birds and that's how they hunt for food.