Although many large mammal species went extinct at the end of the Pleistocene epoch, their
DNA may persist due to past episodes of interspecies admixture. However, direct empirical …

Most species disappear by the processes of background extinction, yet those processes are
poorly understood. We analyzed the evolutionary dynamics of 19 Cenozoic terrestrial …

The extinction of the many well-known large mammals (megafauna) of the Late Pleistocene
epoch has usually been attributed to 'overkill'by human hunters, climatic/vegetational …

The current extinction of many of Earth's large terrestrial carnivores has left some extant prey
species lacking knowledge about contemporary predators, a situation roughly parallel to that …

The origin of the domestic dog from wolves has been established, but the number of
founding events, as well as where and when these occurred, is not known. To address these …

Climate and biological evolution have interacted throughout Earth's history, together
creating many small and a few major transformations in the planet's atmosphere and biota …

Abstract The Eocene/Oligocene boundary, at about 33.7 Myr ago, marks one of the largest
extinctions of marine invertebrates in the Cenozoic period. For example, turnover of mollusc …

Modern humans arrived in Europe~ 45,000 years ago, but little is known about their genetic
composition before the start of farming~ 8,500 years ago. Here we analyse genome-wide …

The last deglaciation was marked by large, hemispheric, millennial-scale climate variations:
the Bølling-Allerød and Younger Dryas periods in the north, and the Antarctic Cold Reversal …

To determine the extent of phylogeographic structuring in North American black bear (Ursus
americanus) populations, we examined mitochondrial DNA sequences (n= 118) and …