If our ancestors hadn't evolved the ability to form bones, we might be shapeless piles of goo.
You may have seen a cat fall from a tree or high rooftop. Ever wonder how felines can survive such great falls?
Your skeleton serves as a calcium bank account for your body.
While we humans get concussions pretty easily, bighorn sheep slam their heads into each other all the time without ill affects. How is this possible?
Have you ever noticed that when you hear your own voice on tape it doesn't sound like you?
Anyone who spends an extended period of time in space faces serious medical problems due to the near total absence of gravity.
Did toxic tar balls cause the health problems associated with the Chumash people?
Scientists have discovered million-year-old evidence that our ancestors may have been cannibals.
Until very recently, humans tended to reproduce before reaching full adult maturity, as did the dinosaurs. Learn more on this Moment of Science.
Astronauts and people on bed rest can experience gradual bone loss that increases their risk of fracturing a bone. Here's why.