Climate change and human impacts are often implicated in Quaternary megafaunal
extinctions. The discovery of associated remains of extinct giant short-faced bears (Arctodus …

Competition between taxa related to climate changes has been proposed as a possible
factor in Pleistocene megafaunal extinctions, and here we present isotope evidence of the …

Eight new AMS radiocarbon dates on giant short-faced bears (Arctodus simus) from the
contiguous United States are reported, and previously published dates from across North …

Arctotherium angustidens Gervais and Ameghino, 1880 (the South American giant short-
faced bear) is known for being the earliest (Ensenadan Age, early to middle Pleistocene) …

The current debate about megafaunal extinctions during the Quaternary focuses on the
extent to which they were driven by humans, climate change, or both. These two factors may …

Analysis of ancient environmental DNA (eDNA) has revolutionized our ability to describe
biological communities in space and time, 1–3 by allowing for parallel sequencing of DNA …

Large carnivores (order Carnivora) are among the world's most threatened mammals due to
a confluence of ecological and social forces that have unfolded over centuries. Combining …

Here we report the first example of associated short-faced bear fossils from South America.
The specimens represent three individuals referable to the Ensenadan (early to middle …

Remains of 22 American black bears (Ursus americanus) were excavated from 2 natural
trap caves in Missouri during the late 1950s. Age, sex, and size characteristics based on …

The short-faced bear (Arctodus simus) was a widespread Tremarctine bear indigenous to
North America until its extinction around 11,500 BP. Arctodus inhabited Pleistocene ice-free …