Dogs and cats - you know the story

[Skybird]

http://www.bbc.co.uk/news/world-us-canada-11747293

"He trees cats all the time," Mr Strenge told The Argus Leader newspaper. "I suppose he figured it was just a cat."

Well, that is dogs and cats. But cats and bears was new to me:

In 2006, a ginger cat - also called Jack - chased a black bear up a tree in West Milford, New Jersey.
When the bear eventually climbed down, Jack the cat chased it up another tree.
Jack the cat's owners described him as very territorial

"Very territorial"