The Tremarctinae are a subfamily of bears endemic to the New World, including two of the
largest terrestrial mammalian carnivores that have ever lived: the giant, short-faced bears …

Background Despite being one of the most studied families within the Carnivora, the
phylogenetic relationships among the members of the bear family (Ursidae) have long …

The Andean bear is the only extant member of the Tremarctine subfamily and the only extant
ursid species to inhabit South America. Here, we present an annotated de novo assembly of …

The polar bear has become the flagship species in the climate-change discussion. However,
little is known about how past climate impacted its evolution and persistence, given an …

Background Beavers are one of the largest and ecologically most distinct rodent species.
Little is known about their evolution and even their closest phylogenetic relatives have not …

Background Despite the small number of ursid species, bear phylogeny has long been a
focus of study due to their conservation value, as all bear genera have been classified as …

Abstract The American black bear (Ursus americanus) experienced a significant range
contraction during the 19th and 20th centuries due to a variety of anthropogenic factors …

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 fossil record indicates that the brown bear (Ursus arctos) colonized North America from
Asia over 50 000 years ago. The species historically occupied the western United States …

Previous studies based on single mitochondrial markers have shown that the common raven
(Corvus corax) consists of two highly diverged lineages that are hypothesised to have …