Hammerhead sharks 'hold their breath' in deeper, colder waters, research shows

How Hammerhead Sharks Stay Warm Will Take Your Breath Away - The New York Times

Marine scientists are getting to the bottom of why some big fish dive deep, deep down

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Megalodon Shark Thrashed An Ancient Whale, Scientists Find, 40% OFF

Hammerhead shark - Wikipedia

With his country calling his name, this is what's holding Adrian

Do sharks hold their breath underwater? This species might.

Nine Cool Shark and Ray Superpowers

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Shark Bay locals fear influx of fishers to World…