- Jul 20, 2011
- Reaction score
- Don't harsh my zen, Jen!
But it is believed that a scarcity of ice has led to bears seeking out food in more dangerous locations.
Mr Coker said: There's a real problem with the ice disappearing due to climate change.
Traditionally the bears sit by an air hole in the ice waiting for a seal to poke its head out so they can grab it.
But because there's less and less ice, the bears are looking for alternative sources of food and have discovered the birds' eggs.
During the expedition the tourists also witnessed bears swimming hundreds of miles out to sea.
Mr Coker added: They're used to resting on and hunting from ice floes but now the bears swim around until they are exhausted, then they drown.