The Karelian Bear Dog (Karjalankarhukoira) is a Finnish breed of dog. Karelian Bear Dogs have been known to hold an animal at bay for a very long time. If a bear tries to leave, the dog will nip at it on the backside and otherwise aggravate it to keep it from running away. They don't always have to hunt with their master, as they can be trained to work with other people. However, they are prone to separation anxiety due to their very social nature.