I think it was on RadioLab where a primatologist mentioned how amazing an airplane flight is. Not the aerodynamics, but that hundreds of people sit jam-packed f

I think it was on RadioLab where a primatologist mentioned how amazing an airplane flight is. Not the aerodynamics, but that hundreds of people sit jam-packed for hours and no one gets hurt. If you put that many monkeys or baboons or whatever in a giant metal tube for a few hours, it would be a bloodbath.