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

Season 34 Episode 11

About the Episode

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.

Aired: | Expires: | Runtime: 54s

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Extras

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How Sir David Attenborough Got His Start

Witness Sir David’s love of fossils as a young boy transform into a passion for the natural world.

2:51
Filming Lions in the Namib Desert

Award-winning wildlife filmmakers tell the behind-the-scenes story of “Lions of the Skeleton Coast."

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Go behind the scenes of David Attenborough's infamous sequence with flying swans.

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Capturing San Diego: America's Wildest City

Go behind the scenes with filmmakers as they capture San Diego's incredible biodiversity.

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