Add Yahoo as a preferred source to see more of our stories on Google. Axolotls are native to Mexico and critically endangered in their habitat, but in scientific laboratories they're finally giving up ...

The findings strengthen the case that regeneration is an old trait, offering insights into how complex tissues rebuild themselves.

A rare circulatory problem required Emily Wheldon to have her left arm amputated three years ago. Her brain still thinks it's there. "Most days, it just feels like I've got my arm next to me," she ...

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 ...