An example of the cruelty of and survival in nature. Don't worry--there is a non-violent ending:

http://www.flixxy.com/bear-animal-nature-film.htm

I can't help but wonder how these presentations are filmed; I know that telescopic lenses are used but how do the filmakers find the lion and know about the baby bear?

Or are the situations set up by the crew; placing the lion and bear in close proximity and hope for an exciting outcome?

Poor kitty. All that work for nothing.

Sometimes, one wonders, but this time it's clearly all set up. The animals are actors and the little cub is the hero. These are scenes from the film "The Bear".

http://www.imdb.com/title/tt0095800/