The analysis of stable isotopes on fossil mammals has become a widely used tool for
understanding the paleoecology and paleodiet of these organisms. In this work, we study …

The diversity of beak shapes among birds is often assumed to be largely the result of
adaptations to different feeding behaviors and diets. However, this assumption has only …

Sloths are represented today only by two distantly-related small, arboreal, and folivorous
genera. However, the fossil record of the clade is composed of many more taxa, with much …

Woody plants and grasses are two functionally distinct food groups that pose different
mechanical, nutritional, and ecological challenges to herbivores. Accordingly, herbivores …

The sabretooth cat Smilodon populator was the largest felid in South America. It appears in
the fossil record in the Early Pleistocene, as an immigrant from North America, and becomes …

The extinction of the Quaternary megafauna stands out among the evolutionary history of
Cenozoic mammals. In South America, nearly 80% of the megamammals went extinct …

The relationship between primate mandibular form and diet has been previously analysed
by applying a wide array of techniques and approaches. Nonetheless, most of these studies …

There is considerable debate regarding whether mandibular morphology in ungulates
primarily reflects phylogenetic affinities or adaptation to specific diet. In an effort to help …

Savanna-like ecosystems were present at high latitudes in North America during much of the
Neogene. Present-day African savannas, like the Serengeti, have been proposed to be …

Macrauchenia patachonica Owen, 1838 is a native and extinct Quaternary megamammal
from South America. Although studies on macraucheniids started two centuries ago, when …