The thing i couldn't help but think was that all of these animals- buffalo, lions, croc, etc. -were just doing what comes naturally to them. Lions and crocs are carnivores, they hunt/ambush prey, or starve. All the behavior (other than the people taping and chatting) is based on instinct, not malice... as Samuel Clemens once said, "Man is the only animal that blushes- or needs to."
Give sorrow words: the grief that does not speak
Whispers the o'er-fraught heart and bids it break.
-William Shakespeare, Macbeth, Act IV, Sc. III