The best, which is real, and worth it if you have, I think, about 8 mins, is a battle between lion and buffalo with a surprise intervention from the water.
http://www.youtube.com/watch?v=LU8DDYz68kM
Amazing. More than 25 million views.
And then there are the “fakes”, often attached to emails like:
"We had a short vacation in Kenya last October and the safari guide has just sent me this fantastic wildlife video clip of when we saw a cheetah hunting. He even managed to get me in it too. "
http://www.youtube.com/watch?v=QRpwsFn5wnQ
This one’s another classic
http://www.youtube.com/watch?v=spnV01K2AIM
Which must have inspired this one, which is a lot more contrived
http://www.youtube.com/watch?v=x-Pw6j80o3A&
Last Update 29 April, 2008