This is a pretty cool video, which I found via links at Trader Mike. Lions take down a baby buffalo, and a fight between the groups ensues. At some point, a crocodile makes a cameo appearance, deciding that it, too, would like to eat the baby.
The key moments are 2:00, 3:35, 4:11, 5:48, and 6:20. [EDIT: hrmm.. I see now that the embedded player only shows time remaining, rather than time elapsed, so if you're watching here, these timestamps aren't that useful. But, if you go see it at the youtube site they will make sense.]
I love that the “takedown move” the lion uses is exactly like what my housecats do if they are playing with a sizeable toy.