In the dark winter darkness of northern Norway Huge flocks of seagulls hovered over the Arctic fjords. It represents the existence of an unusual group of predators in the water below.US scientists say Arctic sea ice has shrunk to record levels due to global warming. Killer whales therefore expand their hunting grounds north and spend more time in polar waters.
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but giant mammals also known as orcas which is at the top of the food chain risk to create "Ecological imbalance" in the Arctic by endangered hunting This month's University of Washington study warned.At the vast Skjervoy fjord in the Arctic Ocean 70 to 80 killer whales can be seen forming families of about 10, including calves under a year old.
More frequent sightings and more northerly indicate that members of the iconic black-and-white dolphin family are learning to adapt to the recently melting waters of the Arctic Ocean.
Marie-Anne Blanchet from the Norwegian Polar Institute said: "Based on the audio survey "We detected killer whales in the Barents Sea in November between Svalbard and Franz Josef Land, so they were clearly along the edge of the ice," said Marie-Anne Blanchet of the Norwegian Polar Institute.Killer whales, with a population of about 50,000 worldwide, are found in most of the world's seas. Prey in the Arctic such as beluga whales and some seal species
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