Human beings have been credited with unparalleled capabilities for digital prehension
gras**. However, gras** behaviour is widespread among tetrapods. The propensity to …

Early mammals were small and nocturnal. Their visual systems had regressed and they had
poor vision. After the extinction of the dinosaurs 66 mya, some but not all escaped the …

We describe approaches for distances between pairs of two-dimensional surfaces
(embedded in three-dimensional space) that use local structures and global information …

This study describes and tests a new method of calculating a shape metric known as the
relief index (RFI) on lower second molars of extant euarchontan mammals, including …

Phylonyms is an implementation of PhyloCode, which is a set of principles, rules, and
recommendations governing phylogenetic nomenclature. Nearly 300 clades-lineages of …

Earliest Paleocene Purgatorius often is regarded as the geologically oldest primate, but it
has been known only from fossilized dentitions since it was first described half a century …

Mammals with more rapid and agile locomotion have larger semicircular canals relative to
body mass than species that move more slowly. Measurements of semicircular canals in …

Very shortly after the disappearance of the non‐avian dinosaurs, the first mammals that had
features similar to those of primates started appearing. These first primitive forms went on to …

Arboreal primates have distinctive intrinsic hand proportions compared with many other
mammals. Within Euarchonta, platyrrhines and strepsirrhines have longer manual proximal …

Arboreal locomotion allows access to above-ground resources and might have fostered the
diversification of mammals. Nevertheless, simple morphological measurements that …