Lab experiments show that some ants will treat the injured legs of comrades, and when it's necessary will even perform medical amputations. Bart Zijlstra, UNIL hide caption
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amputee
Alex Parra is a 22-year-old TikTok influencer who shares his life story of fighting cancer on the platform. He plans to run the San Francisco marathon Sunday using crutches to draw attention to the cost of prosthetics for amputees. Alex Parra hide caption
Prosthetics can cost up to $70,000. This influencer is running a marathon on crutches
University of Utah doctoral student Jacob George, left, and associate professor Greg Clark examine the LUKE arm that they use for their experiments. A man who lost his lower arm in an electrical accident was able to experience some sense of touch and fine motor control with his grip while using the experimental device. Dan Hixson/University of Utah College of Engineering hide caption
Create Prosthetics' 3-D printers give anyone in the world access to a design operation in Lake Placid, N.Y., that, for $500, creates a personalized cover for a prosthetic device. David Sommerstein/NCPR hide caption
Fashionable Prostheses Trade Realistic Color For Personal Pizazz
North Country Public Radio
Martha and Alvaro Galvis used to travel from New Hampshire to Boston to watch the marathon every year. Both were hurt in the bombing two years ago. Jesse Costa/WBUR hide caption
Marathon Bombing Survivors Face A World That Still Feels Out Of Control
Dennis Aabo Sorensen tests a prosthetic arm with sensory feedback in a laboratory in Rome in March 2013. Patrizia Tocci/Lifehand 2 hide caption