Jeff Rense suggests this is radiation sickness with his title:
Alaska Ringed Seals Showing Radiation Sickness?

From: Washington Post

ANCHORAGE, Alaska — An unknown disease is killing or weakening scores of ringed seals along Alaska’s north coast, where the animals have been found with lesions on their hind flippers and inside their mouths.

Ringed seals, the main prey of polar bears, and a species that rarely comes ashore, in late July began showing up on the Beaufort Sea coast outside Barrow with the lesions, patchy hair loss and skin irritation around the nose and eyes.

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