An exoskeleton (From Greek á¼Î¾Ï, Ã©xÅ = "outer" + ÏÎºÎµÎ»ÎµÏÏÏ, skeletos = "skeleton") is the external skeleton that supports and protects an animal's body, in contrast to the internal skeleton (endoskeleton) of, for example, a human. In popular usage, some of the larger kinds of exoskeletons are known as "shells". Examples of exoskeleton animals include insects such as grasshoppers and cockroaches, and crustaceans such as crabs and lobsters. The shells of the various groups of shelled mollusks, including those of snails, clams, tusk shells, chitons and nautilus, are also exoskeletons.
Seiji Uchida is 49 years old and for the past 28 years he’s been left paralyzed from the waist down and to one of his arms after a dreadful car accident. He’s never lost hope of walking on his own two feet ever since, though, and now thanks to the marvels of Japanese robotics, his [...]