Assertion: giant squid's fin | /r/CapableOf | line the peak of their mantle
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text: Giant squid are huge; the maximum scientifically recorded length - from the tip of their ovoid fins that line the peak of their mantle (the thick, muscular tube thing that we think of as their head) to the gruesomely sucker-covered club-like ends of the two feeding tentacles that extend far beyond their eight feeding arms - was 42 feet.