Because the ossification process can differ so much from human to human, we have a wide range of potential bone numbers.

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Can you grow a human bone outside the human body? The answer may soon be yes. Nina Tandon explores the possibility by examining how bones naturally grow inside the body, and illuminating how scientists are hoping to replicate that...

Today we take a look at six misconceptions about cancer that seem plausible, but just don't hold up.

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SHARKS DON'T GET CANCER & TAKING SHARK CARTILAGE SUPPLEMENTS WILL CURE OR PREV
ENT CANC
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Hank introduces us to ourselves by taking us on a journey through the fascinatingly diverse phyla known as chordata. And the next time someone asks you who you are, you can give them the facts: you're a mammalian amniotic tetrapodal...

Sharks are fascinating creatures with cool teeth, awesome scales, and there are over 450 kinds of sharks! Join Jessi and Squeaks to learn some super shark facts!

Why Don't Women Have Adam's Apples?

Howcast - Learn all about cartilage piercing, aka helix piercing, from professional piercer Owen Beane in this Howcast video.

Howcast - Learn how a boy's Adam's Apple develops during puberty from Jennifer Wider, M.D. in this Howcast video.

Howcast - Learn how to trim spareribs into a St. Louis cut from Pork Barrel BBQ pitmasters Heath Hall and Brett Thompson in this Howcast video.

Howcast -Find out if there's any chance your nose would collapse after rhinoplasty like Michael Jackson's in this Howcast video featuring plastic surgeon Robert J. Morin, M.D..

Howcast -Learn about ear reconstruction surgery from plastic surgeon Robert J. Morin, M.D. in this Howcast video.

Learn everything you need to know about a cartilage piercing, aka helix piercing, from professional body piercer Dana Dunn in this Howcast video.

Visit the stingray tank at feeding time and get a closer look at these creatures made up completely of cartilage.

Visit the stingray tank at feeding time and get a closer look at these creatures made up completely of cartilage.

Animation showing the procedure and what to expect for a total knee replacement surgery.

Animation showing the procedure and what to expect for a total hip replacement surgery.

Cod liver oil has been found to be effective in slowing the destruction of joint cartilage in osteoarthritis, according to a clinical trial at Cardiff University. The study revealed that cod liver oil reduced and even reversed damage to...

The Adam’s apple is actually a chunk of bony cartilage that surrounds the larynx, i.e., the voice box. The reason it’s more prominent in men than in women is that during puberty, a man’s voice box tends to grow in size (much more than in...

A baby is born with around 300 bones, whereas a grown adult has 206 bones. Cartilage, a rubber-like padding that shields the ends of long bones at the joints, is the reason behind this. Babies are born with more cartilage (than bone),...

The last and smallest stage of branching airway tubes in the lungs. The bronchioles are microscopic and end in air sacs called alveoli. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images...

Bones can be formed in 2 ways: intramembranous ossification and endochondral ossification. During those processes, many important cells and surrounding structures are built.

Dr. Forrester teaches about the skeletal system.

Sharks don't have bones, let's learn more about them!

Join us in this video as we learn all about the bodies of fish. How are they able to breathe? Why don't they get cold in freezing water? This video will answer all your questions. Just keep swimming!