Dr. Kathy Burek, a veterinary pathologist, slices through the blubber layer on a gray whale that was beached outside Anchorage, Alaska, earlier this month. Scientists are trying to figure out why so many gray whales are dying.
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Dr. Kathy Burek, a veterinary pathologist, slices through the blubber layer on a gray whale that was beached outside Anchorage, Alaska, earlier this month. Scientists are trying to figure out why so many gray whales are dying.