SciShow Explores the Fascinating Anatomy of Sharks and Explains Why They Don’t Have Bones

SciShow host Hank Green celebrates Shark Week with a quick tour of the shark’s fascinating anatomy. Green goes into great detail as he explains how sharks are made up of cartilage instead of bone, which makes them lighter and more flexible.

Justin Page
Justin Page

I'm a geeky artist/blogger who loves his life, wife, two identical twin girls, family, friends, and job.