Did You Know That Sharks Don't Have Bones? [VIDEO]
2014.08.13
Hank Green celebrates Shark Week and offers up a quick tour of the shark's fascinating anatomy. He explains how sharks are made up of cartilage instead of bone, which makes them lighter and flexible.
![sharks2.jpg sharks2.jpg](/files/attach/images/1097/616/718/014/sharks2.jpg)
What do you mean they don't have bones?
![sharks2.jpg sharks2.jpg](/files/attach/images/1097/616/718/014/sharks2.jpg)
Check out the interesting video below:
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