| Title | : | Why Is Our Skeleton On the Inside |
| Duration | : | 8 minutes, 50 seconds |
| Uploader | : | Be Smart |
| Added On: | : | 28 July, 2020 |
| Views | : | 6.4M times |
| Likes | : | 0 |
| Source | : | YouTube |
PBS Member Stations rely on viewers like you. To support your local station, go to httpto.pbs.orgDonateOKAY↓ More info and sources below ↓We’re on PATREON! Join the community ►► httpswww.patreon.comitsokaytobesmartSUBSCRIBE so you don’t miss a
