Ready for Round 2 between YouTube star Mark Rober and a pack of hungry squirrels? The mechanical engineer's latest video features "Backyard Squirrel Maze 2.0," an intense obstacle course built for ...
Does the smell of human blood really whip sharks into a feeding frenzy? And if so, how much blood does it take? These are the questions that plagued Mark Rober. You may know Rober from his viral ...
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