Trabecular architecture (ie, the main orientation of the bone trabeculae, their number, mean
thickness, spacing, etc.) has been shown experimentally to adapt with extreme accuracy and …

Despite the restricted morphology and distribution of sloths today, fossils sloths show a wide
variety of forms and behaviors and used to range from South America to Alaska. These …

Burrowing behavior is widespread among mammals and has generated a diverse array of
adaptive responses to the physical demands of this lifestyle. While extensive research has …

Background Which factors influence the distribution patterns of morphological diversity
among clades? The adaptive radiation model predicts that a clade entering new ecological …

The origin of mammals has been characterized as a gradual process, a claim based
primarily on a well-preserved series of extinct nonmammalian synapsids (“mammal-like …

In birds and other reptiles, the quadrate acts as a hinge between the lower jaw and the skull
and plays an important role in avian cranial kinesis. Though previous studies have …

The relationship between humerus shape and the modes of exploring substrate among
extinct and extant Pilosa (especially anteaters and ground sloths) were investigated here …

Paleoenvironmental reconstructions based on micromammalian assemblages are a
commonly used tool in paleoecology and zooarcheology. However, predator prey …

Background Quantifying morphological diversity across taxa can provide valuable insight
into evolutionary processes, yet its complexities can make it difficult to identify appropriate …

Communities of large mammals exhibit changes in morphological diversity through space
and time; changes that are possibly correlated to distinct aspects of the physical …