Revealed: How BBC's Blue Planet II used a camera with SUCTION CUPS to stick onto a mighty sperm whale and show its intimate family relationship to the world Whale life is complex and they live across world's oceans, roving 50 miles a day Finding and staying with a sperm whale family team's biggest challenge With the help of an expert they were able to use cameras with suction cups The team said they were 'hardly ready for what they saw' when footage came
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