How Blood Evolved (Many Times)

Blood is one of the most revolutionary features in our evolutionary history. Over hundreds of millions of years, the way in which blood does its job has changed over and over again. As a result, we animals have our familiar red blood. But also blue blood. And purple, and green, and even white.

Thanks to Julio Lacerda, Lucas Lima, Franz Anthony of Studio 252mya for several illustrations throughout this episode. You can find more of their work here: https://252mya.com/

Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios

Super special thanks to the following Patreon patrons for helping make Eons possible:

Katie Fichtner, Anthony Callaghan, Renzo Caimi Ordenes, John Vanek, Neil H. Gray, Marilyn Wolmart, Esmeralda Rupp-Spangle, Gregory Donovan, Ehit Dinesh Agarwal, الخليفي سلطان , Gabriel Cortez, Marcus Lejon, Robert Arévalo, Robert Hill, Kelby Reid, Todd Dittman, Betsy Radley, PS, Colin Sylvester, Philip Slingerland, Jose Garcia, Eric Vonk, Tony Wamsley, Henrik Peteri, Jonathan Wright, Jon Monteiro, James Bording, Brad Nicholls, Miles Chaston, Michael McClellan, Jeff Graham, Maria Humphrey, Nathan Paskett, Connor Jensen, Daisuke Goto, Hubert Rady, Yuntao Zhou, Gregory Kintz, Tyson Cleary, Chandler Bass, Maly Lor, Joao Ascensao, Tsee Lee, Sarah Fritts, Ruben Winter, Ron Harvey Jr, Jacob Gerke, Alex Yan

If you'd like to support the channel, head over to http://patreon.com/eons and pledge for some cool rewards!

Want to follow Eons elsewhere on the internet?
Facebook - https://www.facebook.com/eonsshow
Twitter - https://twitter.com/eonsshow
Instagram - https://www.instagram.com/eonsshow/

References:
https://www.ncbi.nlm.nih.gov/p....mc/articles/PMC53784
https://www.ncbi.nlm.nih.gov/p....mc/articles/PMC30974
https://www.ncbi.nlm.nih.gov/pubmed/17120194
https://www.hindawi.com/journals/ijz/2009/301284/
https://www.sciencedirect.com/....science/article/pii/
https://www2.estrellamountain.....edu/faculty/farabee/
http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.456.5625&rep=rep1&type=pdf
https://books.google.com/books?id=pKlVDwAAQBAJ&pg=PA35&lpg=PA35&dq=origin+of+blood+triploblasts&source=bl&ots=OofsZKI3SN&sig=I6Y92wODJah2vWgtPShcnPtR5eI&hl=en&sa=X&ved=2ahUKEwjZ5Lmz6NveAhVPslMKHdOeCSoQ6AEwDXoECAMQAQ#v=onepage&q=origin%20of%20blood%20triploblasts&f=false
http://thebiologyprimer.com/th....e-origin-and-evoluti
https://www.researchgate.net/p....rofile/Thorsten_Burm
https://courses.lumenlearning.....com/wm-biology2/chap
http://jeb.biologists.org/cont....ent/jexbio/201/8/109
https://www.ncbi.nlm.nih.gov/p....mc/articles/PMC35430
https://www.physiology.org/doi/full/10.1152/physrev.2001.81.2.569?url_ver=Z39.88-2003&rfr_id=ori%3Arid%3Acrossref.org&rfr_dat=cr_pub%3Dpubmed
https://www.britannica.com/sci....ence/circulatory-sys
http://www.nhm.ac.uk/discover/....news/2014/april/earl
https://www.ncbi.nlm.nih.gov/p....mc/articles/PMC26142
https://www.nature.com/articles/ncomms4560
https://onlinelibrary.wiley.co....m/doi/abs/10.1111/j.
http://www.nrcresearchpress.co....m/doi/10.1139/e06-01
https://www.britannica.com/animal/mollusk#ref35787
https://www.forbes.com/sites/s....haenamontanari/2016/
https://www.sciencedirect.com/....science/article/pii/
https://www.jstor.org/stable/3....0158158?seq=3#metada
http://www.sci-news.com/paleon....tology/science-fossi
https://academic.oup.com/icb/a....rticle/55/5/792/6040
https://www.mdpi.com/2308-3425/2/1/2/pdf