Nature

Raising the Dinosaur Giant

Have scientists discovered the biggest animal to have ever walked the planet? Deep in a South American desert, a giant is being awakened after 101 million years of sleep. Paleontologists have discovered a giant femur – the largest dinosaur bone that has ever been unearthed. Sir David Attenborough will guide us through the remarkable journey of waking the giant as it happens.

Did This Thighbone Belong to the World's Largest Dinosaur?

54s

Sauropods were long-necked, plant-eating dinosaurs that started off relatively small. However, after 20 million years of evolution, they grew to enormous proportions. Naturalist David Attenborough compares the thighbones of early sauropods to the largest ever found.

  • The 500-Pound Dinosaur Heart : asset-mezzanine-16x9

    The 500-Pound Dinosaur Heart

    S34 E11 - 1m 14s

    Titanosaurs were the world's largest dinosaurs, weighing as much as 100 tons by some estimates. In order to push blood around such massive bodies, they needed an enormous heart. A yet-to-be named species, found in the deserts of Argentina, may have had a heart that weighed over 500 pounds and was six feet around.

  • Raising the Dinosaur Giant | Preview: asset-mezzanine-16x9

    Raising the Dinosaur Giant | Preview

    S34 E11 - 41s

    Have scientists discovered the biggest animal to have ever walked the planet? Deep in a South American desert, a giant is being awakened after 101 million years of sleep. Paleontologists have discovered a giant femur – the largest dinosaur bone that has ever been unearthed. Sir David Attenborough will guide us through the remarkable journey of waking the giant as it happens.

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