CNN Piers Morgan Live August 3, 2013 01:06:00
Swimming, is that true. >> some can sink when they stop swimming. they dont have a traditional bladder like your regular fishes do. instead, they rely on their liver and other parts of their body for floating. >> sharks have no bone sns. >> no bones. >> literally no bones? >> made out of cartilage. very ancient, an excellent groups of fishes. >> sharks cannot live in fresh water. >> thats not true. this shark right here can actually venture into fresh water for weeks, if not months. in fact, the...
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