Dolphins have been found either dead or dying in record-breaking numbers in the Atlantic Ocean, off the United States.
So far 179 dolphins have died on Cape Cod in Massachusetts in a little over a month.
Scientists fear it could be due to a change in sea temperature -- as the region experiences its mildest winter in a hundred years.
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At the same time, a rare and endangered whale species has also changed its behaviour patterns.
Morland Sanders from Channel 4 News has more.
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