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Science

From Giant Tortoises to Immortal Jellyfish, These Impressive Animals Are Eight of the Longest-Living Species on Earth

Brian Handwerk Science Correspondent Life is short, the old saying goes, but in the world of animals, we humans are pretty fortunate: Our species is quite long-lived. With 122 being the oldest documented age, humans can enjoy decades more life than most fish, birds and mammals—including our primate relatives. But we’re not alone in experiencing […]

Science

How to Make a Mammal in Nine Evolutionary Steps

Riley Black Science Correspondent Mammals are familiar beasts. From a squirrel on a power line to a blue whale swimming through the sea, we share the world with more than 6,000 mammal species of all shapes and sizes. While we can easily distinguish a creature like a jaguar from a reptile or a bird in […]