Yes I know it's politically incorrect but every guy out there will have had a conversation at some point with his mates where they debate whether a lion would beat an elephant or a shark beat a whale in a fight.
Some results can be very suprising too.
For starters I give you.....
Bear vs Domestic CatA walkover surely. Welllll, you'd be right.....
http://www.youtube.com/watch?v=6RIgQdpZDeY