For moments at a time, they forget they have four limbs, a form and a body.

ECONOMIST: Hunger

Four other soldiers have lost all four limbs and survived since Mr Marrocco.

BBC: Brendan Marrocco, US quadruple amputee, gets new arms

In one, each girl reclines on a thin, slanted bench with all four limbs stretched up, keeping four fabric swaths in orbit.

WSJ: An Opera Vet Tries to Raise Cirque du Soleil

The first US soldier to survive losing four limbs in Iraq has said he is looking forward to swimming and driving after having a double arm transplant.

BBC: Brendan Marrocco, US quadruple amputee, gets new arms

Part of its charm revolves around the rubberized tracks on its feet as well as on the extremities of each of its four limbs -- not surprisingly, these are engineered to help it maneuver in some pretty sticky situations.

ENGADGET: Carnegie Mellon's Chimp robot is reporting for duty, sir

When he woke up at Walter Reed Medical Center in Washington, Marrocco was alive, but missing all four of his limbs.

CNN: Iraq vet undergoes successful double-arm transplant

Dr. George Velmahos, the hospital's chief trauma surgeon, said Tuesday morning that four patients there have undergone amputations and two more limbs are in jeopardy.

WSJ: Doctors Treating Boston Marathon Victims Describe Injuries

Neil Burton, 32, a father of three from Northampton, became ill four years ago with acute transverse myelitis and Guillain Barre syndrome, both of which cause paralysis and numbness in limbs.

BBC: Paralysed dad Neil Burton's stem cell 'hug hope'