Paranthropus aethiopicus
Guide to Paranthropus species
Long known as a group of human relatives with big teeth and jaws, these ancient species lived for at least two million years alongside our ancestors.
![A closeup of the front of the SK 48 fossil skull showing the eye orbits](/content/images/size/w1460/2024/01/SK-48-visor-johnhawks.jpg)
The real story of myosin, jaw muscles, and ancient brains
The provocative idea that our genus arose with a deactivated muscle gene turned out to be wrong.
![Bonobo and gorilla head and neck, showing ecorché muscles on the left side of each](/content/images/size/w1460/2023/08/bonobo-gorilla-head-muscles-visible-ape-data-left-oblique.png)