Patricia Majluf, a biologist and former deputy fisheries minister, said that tongues of warm water reach into coastal zones, driving anchovetas deeper underwater where many birds can't reach them.
Autopsy delay clouds Peru dolphin die-off mystery →
"For a coast as dynamic as ours, it's not rare that this occurs," said Majluf. "It looks ugly because this has occurred at the same time and place (as the dolphin deaths)."
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