My research interests lie within the intersections of the behavior and biology of our distant ancestors. I want to know the how, when, what, where, and why stone tool making and stone tool use originated millions of years ago. I am interested in the many factors that allowed for the creation of stone tool technologies, particularly those that are most related to the cognitive and biomechanical capacities of our hominin ancestors.
The earliest stone tools are dated to 3.3 million years ago from Eastern Africa. At this time, there were many different types of hominins that lived somewhat contemporaneously with one another. We do not know who made these early tools, but we do know that they predate genus Homo. I have noted the species of human ancestors that lived within that time frame; however, this is a simplified version of the Eastern African record only.
To investigate these types of questions surrounding the origin of stone tool technologies, my colleagues and I use a variety of methods that derive from different areas of research.
Paleoanthropology is the study of human evolution through the fossil and archaeological records.
Lithic technology is the study of the variety of techniques used to produce usable tools from various types of stones.
Primate archaeology is the study of the past and present material record of all members of the order Primates.
My team and I regularly travel to Lake Turkana, Kenya to conduct archaeological fieldwork each summer. This allows us to uncover new information about our distant ancestors.