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Why certain sea lions are vulnerable to changes in food supplyResearchers think they have discovered why certain species of marine mammals, including the deep-diving Australian sea lion, seem particularly vulnerable to changes in their food supply: The mammals work so hard searching for food that their ability to increase the duration of their dives is limited. As a result, they may be unable to cope with food shortages or other environmental stresses. MORE CURRENTS ONLINE is produced every two weeks during the summer. The next issue will be posted on Monday, July 23.
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