The Oldest Shark Alive Today | 400 Years and Counting

In the freezing, pitch-black waters of the Arctic, a creature that was alive before the invention of the steam engine is still hunting today. The Greenland Shark (Somniosus microcephalus) is the world’s slowest, oldest, and most mysterious predator — and it has been alive for 400 years. This isn't just an animal; it’s a biological time capsule. Growing less than a centimeter a year, this "sleeper shark" is a master of extreme longevity, surviving in waters that would instantly kill most other vertebrates. In this video, we pull back the curtain on its bizarre adaptations: the strange parasitic copepod that clings to its eye like a bioluminescent lure, the toxic, anti-freeze-like chemical in its flesh, and why it doesn't even reach sexual maturity until it's 150 years old. The Greenland shark has seen empires rise, fall, and reinvent the world, all while barely moving. It is a master of patience, a survivor of extreme environments, and a living piece of history. Nature is more brutal than fiction. Subscribe for weekly doses of bizarre animal science. TIMESTAMPS: 00:00 - The 400-Year-Old Greenland Shark 00:30 - Physical Anatomy: Size, Skin, and Eyes 00:58 - Why They Are Called "Sleeper Sharks" 01:09 - Hunting Strategy: How They Catch Seals 01:30 - Scavenging in the Arctic Ocean 01:54 - How Scientists Age a Shark (The Eye Lens Theory) 02:20 - Radiocarbon Dating and 1950s Nuclear Tests 02:54 - Crushing the Longevity Record (Oldest Vertebrate) 03:18 - The Parasite Lure: Biology or Camouflage? 03:55 - Extreme Slow Growth: The Secret to Immortality 04:47 - Human Anti-Aging Research from Shark DNA 05:00 - Biological Maturity: Why It Takes 150 Years 06:40 - The Toxic Truth About Shark Meat (Trimethylamine Oxide) 07:23 - Hákarl: Why Icelandic Fermented Shark Smells So Bad 07:56 - Stomach Content Mysteries: From Seals to Polar Bears 08:35 - Longest Pregnancy Record: 18 Years 09:04 - A 400-Year Perspective: What History They Have Seen 09:32 - Conservation: Why This Shark Needs Our Help ⚠️ This content is for educational and informational purposes only.