Great video..
Its kinda sad that we exploit animals, lock them in pens/cages and abuse them for the food chain etc. Shame we couldnt remain hunter gathers and just hunt/collect food when needed, thus respecting the whole environment and fellow living species on the planet around us.
Funny thing is that most of us feel the same when watching such videos you have posted, yet it still dosnt change most, of our perception on things.