Secrets of the World’s Longest-Lived Animals

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Episode 404 Jonathan the tortoise was born in the year 1832, on a beach in the Seychelles. 194 years later and Jonathan is still alive, celebrating his birthday. How exactly has he managed to survive for so long? Jonathan is a giant tortoise and the world’s oldest known land animal. His genome has now been sequenced, revealing intriguing hints about longevity. And it seems the key to a long life is all down to mitochondrial function. From Greenland Sharks to the enigmatic quahog, this also seems to be the case for Earth’s other longest-lived creatures - one of which survived for 507 years. Rowan Hooper and Penny Sarchet discuss what these animals tell us about the science of healthy aging,…