Now, Japanese researchers are moving a promising, tooth-regrowing medicine into human trials. If the trial is successful, the ...

While full-grown adults have 206 bones, babies are born with far more. Here's how many, and what happens to them.

“The Clone’s skeletal system contains all 206 bones of the human body with a small number of bone fusions,” Clone Robotic’s site says. “The joints are fully articulated with artificial ...