Since the 1970s, populations of Steller sea lions have dramatically declined in the western Aleutian Islands of Alaska, where they are protected under the Endangered Species Act. What exactly is responsible for the downturn is unknown, and is especially confounding given that sea lion populations to the southeast and in Russia are on the rise.

Create Date : 18 มิถุนายน 2555
Last Update : 18 มิถุนายน 2555 15:41:22 น.		0 comments
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