How Mammal Jaw Bones Evolved into Ears

Animal evolution has led to some wild anatomical changes, such as jaw bones turning into...ears? A new fossil has been found that might help us understand how jaw bones evolved into complex middle ears found in mammals! Learn all about it with Hank in this new episode of SciShow.

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Sources:
Mammal Ears
https://press.nature.com/cretaceous-fossil-reveals-a-new-pattern-in-mammalian-middle-ear-/17413100
https://www.nature.com/articles/s41586-019-1792-0
https://www.nature.com/articles/d41586-019-03605-1
http://www.geo.utexas.edu/faculty/rowe/Publications/pdf/023%20Rowe1996a.pdf
https://royalsocietypublishing.org/doi/full/10.1098/rspb.2016.2416
https://evolution.berkeley.edu/evolibrary/article/evograms_05
https://www.ncbi.nlm.nih.gov/pubmed/19674542
https://www.britannica.com/animal/reptile/Hearing
HIV
https://www.eurekalert.org/pub_releases/2019-11/aaft-eat112519.php
http://dx.doi.org/10.1126/scitranslmed.aax7350
https://aidsinfo.nih.gov/understanding-hiv-aids/fact-sheets/19/93/what-is-a-latent-hiv-reservoir-
https://stm.sciencemag.org/content/11/520/eaax7350

Image Credits:
https://www.eurekalert.org/multimedia/pub/218153.php
https://commons.wikimedia.org/wiki/File:Ptilodus_skull_BW.jpg
https://commons.wikimedia.org/wiki/File:Taeniolabis_NT_small.jpg
https://commons.wikimedia.org/wiki/File:Blausen_0330_EarAnatomy_MiddleEar.png
https://commons.wikimedia.org/wiki/File:Gray919.png
https://commons.wikimedia.org/wiki/File:Gray918.png
https://commons.wikimedia.org/wiki/File:Gray917.png
https://commons.wikimedia.org/wiki/File:Gray916.png
https://commons.wikimedia.org/wiki/File:Jaw_joint_-_mammal_n_non-mammal.png

Видео How Mammal Jaw Bones Evolved into Ears канала SciShow