Bear knuckle boxing: Cubs compete to be king of the castle

These adorable baby bears look just like they're playing King of the Castle - as they battle to knock each other off a log.

They spent hours at the game, wrestling on top of the tree trunk and pushing one another over like gladiators.

The little grizzly bears bopped each other over the head and even tried to bite one another with their tiny teeth as they practised their fighting skills.

They shuffled backwards and forwards, teetering on the splintered wood as they playfully tried to show who was boss.   Read Full