The discovery of a 700,000-year-old arm bone fossil and two teeth on the Indonesian island of Flores is shedding light on how the tiny, now-extinct human Homo floresiensis evolved.

Left arm pain without chest pain can result from many issues. Some are temporary or respond to home care, while others need urgent treatment. Learn more here.

Myles Grimmett was diagnosed with a rare bone cancer in his right arm in 2016 To avoid amputating the preschooler's dominant arm, Myles, 5, had a "redundant" bone from his left leg transplanted ...

This image shows a humerus and ulna meeting at the elbow. These bones were affected by the woman's vanishing bone disease. Brian C Goss/Wikimedia Commons/Public Domain ...

A pain in your left arm could mean you have a joint injury, pinched nerve, or problem with your heart. Read on to learn more about the causes of arm pain and what other symptoms to watch for.

"Grey's Anatomy" star Eric Dane details his battle with ALS on "Good Morning America," sharing how he first noticed weakness in his hand and now struggles with losing function in both arms.

The feet support the human body when standing, walking, running, and more. They are complex structures with 26 bones. Learn more about foot bones and foot anatomy here.

In an emotional interview with Diane Sawyer, Eric Dane revealed he has "one functioning arm" amid his battle with ALS.

Former Grey’s Anatomy star Eric Dane has opened up about his struggle with ALS (amyotrophic lateral sclerosis, also known as Lou Gehrig’s disease) after revealing his diagnosis in April.

Dane, who is known for his roles on “Grey’s Anatomy” and “Euphoria,” sat down with ABC News, saying, “I have one functioning arm ... my left side is functioning. My right side has ...

Myles Grimmett was diagnosed with a rare bone cancer in his right arm in 2016 To avoid amputating the preschooler's dominant arm, Myles, 5, had a "redundant" bone from his left leg transplanted ...