Why Do These Reptiles’ Bones Look Blue?

Head to https://linode.com/scishow to get a $100 60-day credit on a new Linode account. Linode offers simple, affordable, and accessible Linux cloud solutions and services.

These reptiles' bones glow under blacklights, and so do yours! And while glowing bones is an evolutionary coincidence, some vertebrates have evolved to use it to their advantage.

Hosted by: Hank Green (he/him)
----------
Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow
----------
Huge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever: Matt Curls, Alisa Sherbow, Dr. Melvin Sanicas, Harrison Mills, Adam Brainard, Chris Peters, charles george, Piya Shedden, Alex Hackman, Christopher R, Boucher, Jeffrey Mckishen, Ash, Silas Emrys, Eric Jensen, Kevin Bealer, Jason A Saslow, Tom Mosner, Tomás Lagos González, Jacob, Christoph Schwanke, Sam Lutfi, Bryan Cloer
----------
Looking for SciShow elsewhere on the internet?
SciShow Tangents Podcast: https://scishow-tangents.simplecast.com/
TikTok: https://www.tiktok.com/@scishow
Twitter: http://www.twitter.com/scishow
Instagram: http://instagram.com/thescishowFacebook: http://www.facebook.com/scishow

#SciShow #science #education #learning #complexly
----------
Sources:
https://www.merriam-webster.com/dictionary/fluorescence
https://chem.libretexts.org/Bookshelves/Physical_and_Theoretical_Chemistry_Textbook_Maps/Supplemental_Modules_(Physical_and_Theoretical_Chemistry)/Spectroscopy/Electronic_Spectroscopy/Radiative_Decay/Fluorescence#:~:text=Fluorescence%20occurs%20when%20an%20atom,on%20the%20molecule%20or%20atom.
https://www.bones.nih.gov/health-info/bone/bone-health/what-is-bone
https://www.nature.com/articles/2061328a0
https://pubmed.ncbi.nlm.nih.gov/27404617/#:~:text=Bones%20fluoresce%20when%20exposed%20to,degrade%20and%20denature%20over%20time.
https://www.youtube.com/watch?v=z3H6fJ3t-Cs
https://www.nature.com/articles/s41598-019-41959-8#Sec5
https://www.nature.com/articles/s41598-017-19070-7

Image Sources:
https://www.gettyimages.com/detail/video/chameleon-stock-footage/969130304?phrase=chameleon&adppopup=true
https://www.nature.com/articles/s41598-017-19070-7/figures/4
https://www.youtube.com/watch?v=S9ye2evdaWI
https://www.gettyimages.com/detail/video/human-spine-stock-footage/1221632592?phrase=bone&adppopup=true
https://www.gettyimages.com/detail/video/skeleton-rib-cage-inside-stock-footage/1332837974?phrase=bone&adppopup=true
https://www.gettyimages.com/detail/video/forensic-scientist-at-work-stock-footage/1194513094?phrase=black%20light&adppopup=true
https://www.gettyimages.com/detail/video/aquarium-with-different-colored-glofish-gymnocorymbus-stock-footage/1365461543?phrase=fluorescent%20fish&adppopup=true
https://www.nature.com/articles/s41598-017-19070-7/figures/1
https://www.gettyimages.com/detail/video/closeup-of-red-green-and-blue-panther-chameleon-moving-stock-footage/1153722709?phrase=chameleons&adppopup=true
https://en.wikipedia.org/wiki/File:Intense_bone_fluorescence_reveals_hidden_patterns_in_pumpkin_toadlets_-_video_1_-_41598_2019_41959_MOESM2_ESM.webm
https://www.gettyimages.com/detail/video/chameleon-stock-footage/127985955?phrase=chameleon&adppopup=true