This article from the International Herald Tribune details how thousands of Walruses have migrated to Alaska's rocky shores as their usual summer home, the ice pack, has receded way too far north.
The remaining ice pack was way north of the edge of the continental shelf, which is where their staple diet lives. The ice pack was over water too deep for them to dive for food, so the poor Walruses have had to find other locations to lay around on whilst bringing up their pups.
This raises the distinct possibility of mass starvation, as too many walruses migrating to the rocky coastline consume a diminishing supply of clams, snails etc. closer to the shore.
This is just another in the long line of indicators of what climate change just might do to various life forms on this planet. The thing is, Walruses will simply starve, pretty much until the population has dropped low enough to survive on the remaining food supply. Were a similar scenario to occur where humans are involved, the consequences will inevitably be much nastier, as we've learned to create, cherish, and use, to devastating effect, all manner of lethal weapons.
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