When the aging brain misfires, the results can be astonishing and a little alarming.

When an axolotl loses a limb to a hungry predator, it sprouts a structurally sound replacement, rebuilding flesh, bone, and ...

Memphis Scissom was born with amniotic band syndrome and had his right leg amputated before his first birthday.

Familial hyperchylomicronemia syndrome (FCS) is a rare disorder you get from genes passed down from your parents. When you have it, your body isn’t able to break down (metabolize) fat. Specifically, ...