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Sea otters in Alaska seem to be vanishing due to killer whales'
change in dining habits
July 14, 2000 Web posted at: 12:29 p.m. EDT (1629 GMT)
ANCHORAGE, Alaska (Reuters) --
Sea otters, the cuddly animals beloved by tourists but hunted nearly to extinction by Russian and American fur traders centuries ago, are again vanishing from Alaska's Aleutian islands.
This time the culprit appears to be orca whales, which have begun eating otters, a radical change in their diet. Orcas were first spotted chasing down and killing otters in the early 1990s, said Jim Estes, a biologist with the U.S. Geological Survey in Santa Cruz, California, who has seen the attacks.
http://www.cnn.com/2000/NATURE/07/14/otters.whales.reut/index.html