![Discovery of a low frequency sound source in Mysticeti (baleen whales): Anatomical establishment of a vocal fold homolog - Reidenberg - 2007 - The Anatomical Record - Wiley Online Library Discovery of a low frequency sound source in Mysticeti (baleen whales): Anatomical establishment of a vocal fold homolog - Reidenberg - 2007 - The Anatomical Record - Wiley Online Library](https://anatomypubs.onlinelibrary.wiley.com/cms/asset/d7bb6bec-68ce-46e3-9653-7f3d1d2d5ef0/mfig003.jpg)
Discovery of a low frequency sound source in Mysticeti (baleen whales): Anatomical establishment of a vocal fold homolog - Reidenberg - 2007 - The Anatomical Record - Wiley Online Library
How do we know that whales can't make sounds without vocal cords? Did they ever have vocal cords to begin with? - Quora
![The anatomy of the larynx of the bowhead whale, Balaena mysticetus, and its sound‐producing functions - Schoenfuss - 2014 - The Anatomical Record - Wiley Online Library The anatomy of the larynx of the bowhead whale, Balaena mysticetus, and its sound‐producing functions - Schoenfuss - 2014 - The Anatomical Record - Wiley Online Library](https://anatomypubs.onlinelibrary.wiley.com/cms/asset/e2317274-74f0-4d80-9ad1-bf5d32e16127/ar22907-fig-0002-m.jpg)
The anatomy of the larynx of the bowhead whale, Balaena mysticetus, and its sound‐producing functions - Schoenfuss - 2014 - The Anatomical Record - Wiley Online Library
How do we know that whales can't make sounds without vocal cords? Did they ever have vocal cords to begin with? - Quora
![Discovery of a low frequency sound source in Mysticeti (baleen whales): Anatomical establishment of a vocal fold homolog - Reidenberg - 2007 - The Anatomical Record - Wiley Online Library Discovery of a low frequency sound source in Mysticeti (baleen whales): Anatomical establishment of a vocal fold homolog - Reidenberg - 2007 - The Anatomical Record - Wiley Online Library](https://anatomypubs.onlinelibrary.wiley.com/cms/asset/cb3b2fec-afb1-45bb-82f7-757cb68e403b/mfig005.jpg)