BACKGROUND North and South America were the last continents populated by modern
humans. The timing of their arrival, the routes they took, their homeland of origin, and how …

This paper provides an overview of the contentious issue of global megafaunal extinctions in
the Late Quaternary. The main proposed causes are 'overkill', environmental change or a …

Environmental DNA (eDNA) refers to DNA that can be extracted from environmental
samples (such as soil, water, feces, or air) without the prior isolation of any target organism …

Abstract During the Last Glacial Maximum, continental ice sheets isolated Beringia
(northeast Siberia and northwest North America) from unglaciated North America. By around …

The initial colonization of the Americas remains a highly debated topic, and the exact timing
of the first arrivals is unknown. The earliest archaeological record of Mexico—which holds a …

Hepatitis B virus (HBV) is a major cause of human hepatitis. There is considerable
uncertainty about the timescale of its evolution and its association with humans. Here we …

" Sometime before 15,000 years ago, a band of hunter-gatherers arrived in Northeast Asia.
They continued east, becoming the first people to set foot in the Americas. They soon found …

Thirty-two radiocarbon ages on bone, charcoal, and carbonized plant remains from 10
Clovis sites range from 11,110±40 to 10,820±10 14C years before the present (yr BP) …

Proboscideans and humans have shared habitats across the Old and New Worlds for
hundreds of thousands of years. Proboscideans were included in the human diet starting …

A series of publications purport to provide evidence that the Earth was subjected to an
extraterrestrial event or events at∼ 12.9 ka creating an environmental cataclysm and the …