Fibroblasts are a key part of wound healing. (Gopal Murti/Science Photo Library/Getty Images) While human beings have some ...

Some amputated limbs heal into scars. Others begin building themselves back. That split has long sat at the center of regeneration research. Salamanders and frog tadpoles can regrow lost limbs, while ...

BEIRUT (Reuters) -Six-year-old Omar Abu Kuwaik still believes that by his next birthday, his missing hand will have grown back. He is one of thousands of Palestinian children who have lost limbs and ...

Three children are feeling pure joy this December about "the best Christmas present in the world." Ettie Baker, age 8, Zoey Hampton-Pigeon, age 8, and Finn Jarvis, age 11, were all given ...

Researchers collected images of lizards with missing limbs from experts around the world. Pictured here: an American green anole. Tony Gamble Jonathan Losos, a lizard biologist at Washington ...