Life originated in anoxia, but many organisms came to depend upon oxygen for survival,
independently evolving diverse respiratory systems for acquiring oxygen from the …

The comparatively low compliance of the mammalian lung results in an evolutionary
dilemma: the origin and evolution of this bronchoalveolar lung into a high-performance gas …

The turtle body plan differs markedly from that of other vertebrates and serves as a model
system for studying structural and developmental evolution. Incorporation of the ribs into the …

Several recent studies conclude that exceptions to Dollo's law are more common than used
to be thought. If the claims are true this would change our view on the role of developmental …

Aspiration breathing is the dominant mechanism of lung inflation among extant amniotes.
However, aspiration has two fundamental problems associated with it: paradoxical visceral …

We discuss the morphology of the respiratory system regarding the phylogenetic relation
among selected Testudines (Tetrapoda: Amniota). Lung structure and the associated …

Competition heavily influences the structure of island communities, particularly in species-
rich areas. If ecologically similar lineages come into contact following dispersal, selection …

Biological variables are frequently described by analyzing scaling relationships of the
variable against body mass (MB). Respiratory variables are no exception and allometric …

The sandfish lizard, Scincus scincus (Squamata: Scincidae), spends nearly its whole life in
aeolian sand and only comes to the surface for foraging, defecating and mating. It is not yet …

Using specialized respiratory structures such as gills, lungs and or a tracheal system,
animals take up oxygen and release carbon dioxide. The efficiency of gas exchange …