Ancient Crocodiles, Titanoboa & Evolution | LiveScience
http://www.livescience.com/16064-ancient-freshwater-crocodile.html/ In what might seem like a scene from a monster movie, an ancient 20-foot crocodile and the world's largest snake may have battled it out in Colombian forest rivers 60 million years ago.
I can see it now, little teensy mammals and great big terror-birds and a host of other denizens of the area screaming, yelling, and rooting their favorite on while throwing popcorn at the villian. Go get 'em!