07/01/2026
A new paper by our own Dr. Ben Potter is out in Science Advances today.
https://www.science.org/doi/10.1126/sciadv.aef9628
Title: Hemisphere-Wide Evidence of Early Paleoindian Megaherbivore Specialization
Abstract: The adaptive strategies of Early Paleoindians associated with the rapid and continent-wide expansions of Clovis and related Fishtail Projectile Point (FPP) complexes in the Americas have been subject to differing interpretations. Were Early Paleoindians megafauna specialists or dietary generalists? These alternative models offer profoundly different implications for Early Paleoindian prey choice, mobility, and technology. Here we synthesize and evaluate the zooarchaeological records of the earliest widespread cultural manifestations in Eastern Beringia (~14,000-13,300 cal BP), North America (Clovis Complex, ~13,400/13,050-12,800 cal BP) and South America (FPP Complex, ~12,900-11,600 cal BP) and summarize their adaptive strategies. Zooarchaeological, technological, and mobility data strongly support the megafauna specialization model. All three groups obtained most of their food from megaherbivores (>1000 kg): woolly mammoth in Beringia, Columbian mammoth in North America, and giant ground sloths and gomphotheres in South America. Focus on megaherbivores facilitated rapid human expansion into different ecosystems before the time-transgressive extinction of megafauna led to regional diversification through adaptations to other locally available resources.
The three earliest continent-wide cultures in the Americas focused on the largest prey, like mammoths and giant ground sloths.