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These hyaenodonts gave the world some of its largest terrestrial, carnivorous mammals ever known. And while these behemoths were the apex predators of their time, they were no match for a changing world.

Thanks to Dr. Matthew Borths and Dr. Nancy Stevens for allowing us to use images from their recent paper on Simbakubwa, including the wonderful paleoart of Mauricio Antón: https://www.tandfonline.com/doi/abs/1...

And big thanks to these paleoartists for allowing us to use their wonderful illustrations:
Julio Lacerda (Simbakubwa kutokaafrika and Hyainailouros sulzeri): https://252mya.com/gallery/julio-lacerda
Ceri Thomas (Megistotherium osteothlastes and Hyainailouros napakensis):   / alphynix  

Produced in collaboration with PBS Digital Studios:    / pbsdigitalstudios  

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References: https://docs.google.com/document/d/1m...