多發幾張圖補充.
![](http://i.dailymail.co.uk/i/pix/2012/09/10/article-0-14EFE572000005DC-131_634x388.jpg)
Danger on the horizon: The huge male polar bear (circled) pokes his head out from behind a chunk of ice as he watches the mother and her two cubs
![](http://i.dailymail.co.uk/i/pix/2012/09/10/article-0-14EFE5AE000005DC-862_634x500.jpg)
Let's get out of here: The three bears plunge into the water to escape the hungry male
![](http://i.dailymail.co.uk/i/pix/2012/09/10/article-0-14EFE536000005DC-591_634x404.jpg)
Swim for it: The dramatic chase was witnessed by tourists on a sightseeing expedition Spitsbergen in Norway
![](http://i.dailymail.co.uk/i/pix/2012/09/10/article-0-14EFE2D2000005DC-710_634x375.jpg)
Can't keep up: The old male polar bear was not fast enough to catch the family
![](http://i.dailymail.co.uk/i/pix/2012/09/10/article-0-14EFE382000005DC-216_634x356.jpg)
Quick snack: Despite their flight from the male polar bear, the family still managed to make their way to eat another bear's kill
![](http://i.dailymail.co.uk/i/pix/2012/09/10/article-0-14EFE4B7000005DC-220_634x356.jpg)
Any sign of him? After their dramatic swim to safety one of the cubs and his mother keep watch for the threatening male
![](http://i.dailymail.co.uk/i/pix/2012/09/10/article-0-14EFE38E000005DC-561_634x408.jpg)
Keeping an eye out: The incredible images were captured by British tour guide and photographer Paul Goldstein
![](http://i.dailymail.co.uk/i/pix/2012/09/10/article-0-14EFE4D3000005DC-797_634x403.jpg)
The stunning creatures continued to swim right under the bow of the ship. At first the astonished tourists did not realise they were fleeing from the male bear
![](http://i.dailymail.co.uk/i/pix/2012/09/10/article-2201241-14EFE2BC000005DC-191_634x595.jpg)
Can't catch me: One of the young cubs rears up to get a look at the old male chasing them |