Double amputee David Williams modeled for the Prosthetics and Orthotics class at Australia's University of the Sunshine Coast -- and is now a part of the class. "I'm studying towards a career that I know will make a tangible difference to the lives of people from all sorts of backgrounds who are dealing with injuries or diseases or genetic disabilities," Williams said.

Researchers at the Norwegian University of Science and Technology say exoskeletons should fit all people, including those that are overweight, underweight, short and tall. "We want to get exoskeleton designers to think more inclusively and develop robot technology that works for more people," says researcher Roger Soraa.

David Sneddon said osseointegration and a new prosthetic leg with a microprocessor has improved how he moves and reduced pain he experienced with a traditional socket. Sneddon lost his left after he was struck by a bullet while serving in Afghanistan.

Veterinarians at Colorado State University's James L. Voss Veterinary Teaching Hospital helped Marley, a 7-year-old grizzly bear, get moving again after she was found with two broken elbows at a tourist attraction. Marley was kept in a concrete enclosure, where a fall likely caused the fractures. Veterinarian Terry Campbell, who works with exotics at CSU, and his team oversaw her care. Surgery in February was successful, and after nine months of rehabilitation, Marley now roams a 20-acre enclosure at a sanctuary with other bears.

Marley the bear is recovering after surgery at Colorado State University's Veterinary Teaching Hospital to treat the 7-year-old grizzly's forelimb fractures, one of which had become infected. The animal had been confined to a small concrete enclosure before being rescued from a roadside attraction last month, and one of the fractures was at least four weeks old.