Experts say they’re not sure why orca whales haven’t been seen along the coastline of Vancouver Island this year. There are two theories floating around: a lack of Chinook salmon and a change in whale leadership.
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The National is CBC's flagship nightly news program, featuring the day's top stories with in-depth and original journalism, with hosts Adrienne Arsenault and Andrew Chang in Toronto, Ian Hanomansing in Vancouver and the CBC's chief political correspondent, Rosemary Barton in Ottawa.
Disappearance of killer whales a mystery to experts
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Whalesorca whalesbritish columbia whalescanada whalesMonika Wieland-ShieldsOrca Behaviour Instituteorca eating salmonorca eating chinook salmonorca salmonAndrew TritesUniversity of British ColumbiaUBC marine mammal researchmarine mammal researchLance Barrett-Lennardwhere did the orcas gowhere are the orcaswhere did the orca whales gokiller whaleshumpbackhumpback whalessei whalesCBCThe NationalGreg Rasmussenwest coast whales
