A heartwarming video shows a baby smiling with his twin brother despite a genetic condition which has left him with twisted legs.
Bishop Hunt, one years old, was born with deformed bones in his legs due to a condition called tibial hemimelia that cause his feet to turn inwards.
His twin brother, Deacon, was born healthy to parents Shaye and Dameon Hunt, from Charlotte, North Carolina.
They were told during her pregnancy that Bishop wouldn't live a life as normal as his twin brother's because he would have many health defects.
One of these was discovered when he wasn't passing stool – Bishop was born without an anus, for which he needed corrective surgery.
Now, the family are hoping to raise $88,000 (£69,630) for Bishop to get drastic leg straightening surgery.
They have rejected three surgeons' recommendations of amputation as they want Bishop to live a life without prosthetic limbs.
Bishop Hunt was born with deformed bones in his legs due to a condition called tibial hemimelia. His leg bone is disconnected from his ankles which make his feet turn inwards
Bishop, who is now one years old, smiles and plays with his twin brother, Deacon, who was born healthy, and brother Kennedy, three
Parents Shay and Deacon Hunt were told Bishop had VACTERL association, which causes a group of birth defects in various parts of the body. Bishop pictured recently
Against all odds, Bishop is an energetic baby who has adapted to moving around, playing with his siblings Kennedy, three, and Deacon, his parents say.
Mrs Hunt, whose age and occupation are unknown, said: 'I love seeing Bishop attempt and succeed at keeping up with his twin and peers at day-care.
'It warms my heart and keeps the fight in me alive.'
Mrs Hunt, writing on a GoFundMe page, revealed she sobbed when doctors told her at a 20-week scan that Bishop would be born with many health problems.
Tibial hemimelia, is a deformity, partial or total absence of the tibia, the thicker of the two bones in the lower leg.
It is the rarest form of leg bone growth, occurring in only one out of one million live births, according to orthopeadic surgeons such as Paley Orthopedic & Spine Institute.
The problems present at birth, but some experts say it can be seen during pregnancy scans.
It can affect one or two legs, affecting two (bilateral) in 30 per cent of cases.
Almost always, the leg is shortened and there are likely to be foot and ankle deformities and the foot may have additional toes. The knee may be twisted inwards and may be unstable or completely dislocated.
Instability is also due to an absence of muscles or ligaments attaching the tibia to the femur.
Treatments, depending on individual cases,
