The living tree sloths Choloepus and Bradypus are the only remaining members of Folivora,
a major xenarthran radiation that occupied a wide range of habitats in many parts of the …

Living sloths represent two distinct lineages of small-sized mammals that independently
evolved arboreality from terrestrial ancestors. The six extant species are the survivors of an …

Advancements in ancient DNA analyses now permit comparative molecular and
morphological studies of extinct animal dung commonly preserved in caves of semiarid …

Whatever the cause, it is extraordinary that dozens of genera of large mammals became
extinct during the late Quaternary throughout the Western Hemisphere, including 90% of the …

Predator-prey interactions revealed by vertebrate trace fossils are extremely rare. We
present footprint evidence from White Sands National Monument in New Mexico for the …

Fossil sloths are regarded as obligate herbivores for reasons including peculiarities of their
craniodental morphology and that all living sloths feed exclusively on plants. We challenge …

Sloths, like other xenarthrans, are an extremely interesting group of mammals that, after a
long history of evolution and diversification in South America, became established on …

Phylogenetic relationships among sloths (Folivora) have been extensively studied in the
past few decades using maximum parsimony approaches. Recently, Bayesian phylogenetic …

A rich variety of anatomical and physiological specializations has enabled members of the
family Talpidae (moles, shrew moles, and desmans) to exploit a diverse range of habitats …

Organic remains, especially dung, of extinct ground sloths provide ideal material for
radiocarbon dating. Rampart Cave, Arizona, revealed periodic occupation at intervals by the …