ASU Institute of Human Origins

@asuiho.bsky.social

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Connecting the Human Past to the Global Future—IHO is a world-renowned research center at Arizona State University investigating human origins. IHO@asu.edu

Turkana research assistant Amuria Lotiira holds a saliva collection tube and explains the protocol to potential participants in an ASU study. In 2015, a team tested levels of cortisol and testosterone from saliva samples from Turkana pastoralist warriors in Kenya. A Turkana-area chief sits to the left of Lotiira. Photo by Matthew Zefferman