The Longest Living Vertebrate?

The Greenland Shark: The Longest-Living Vertebrate on Earth It swims in icy darkness, lives for centuries, and keeps its secrets close. Meet the Greenland shark—one of the most mysterious and long-lived animals on the planet. In this episode of Proving the Concept, we dive into the slow-moving world of the Greenland shark, a deep-sea predator that can live for 400 years or more. With a lifespan that outlasts empires, it’s a living time capsule of ocean history. What You’ll Learn: • How scientists determined the Greenland shark’s record-breaking lifespan • Why it grows so slowly—just 1 cm per year • The strange quirks of its biology, including semi-blindness and toxic flesh • What this species tells us about ageing, resilience, and deep-sea ecosystems Ancient, elusive, and still swimming strong—this shark is the closest thing we have to an underwater time traveler. Watch more episodes on YouTube:    / @proofofconceptcreatives   Listen on Spotify: https://open.spotify.com/show/1v3a8xp... Subscribe for more science that stands the test of time. #SciencePodcast #GreenlandShark #Longevity #DeepSeaLife #MarineBiology #WomenInSTEM #ProvingTheConcept