PHOTOS: Dwarfism and Gigantism

The Tallest and Smallest People

Dwarves
Dwarves
Dwarves
Dwarves
Dwarves
Dwarves
Dwarves
Dwarves
Dwarves
Dwarves
Gigantism
Gigantism
Gigantism
Gigantism
Gigantism
Gigantism
Dwarves
Mark and Susie Campbell as a young couple. The National Geographic Channel's study demonstrates how and why dwarfs develop physically. For example, because of a genetic mutation passed on by a parent, the thigh and upper arm bones of dwarfs with achondroplasia, like Susie, are half normal size. The outer bone of the lower leg, the fibula, grows longer than the inner bone, the tibia. That's what causes the legs to bow outward, and creates a distinctive walk, a kind of sway that also requires more energy for each step. (Courtesy of the Campbell Family)
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