Toothed whales (odontocetes) emit high-frequency underwater sounds (echolocate)—an
extreme and unique innovation allowing them to sense their prey and environment. Their …

Extant marsupials are less ecologically diverse than placentals, and this is reflected by
placentals exhibiting a greater diversity of locomotor modes, including powered flight and …

Studies of differences in modularity and integration among the related species can provide
important information on their evolution. We argue that evolutionary changes in the …

Complex morphological structures, such as skulls or limbs, are often composed of multiple
morphological components (eg, bones, sets of bones) that may evolve in a covaried manner …

In mammals, postnatal growth plays an essential role in the acquisition of the adult shape.
During this period, the mandible undergoes many changing functional constraints, leading …