The whole‐body (tachymetabolic) endothermy seen in modern birds and mammals is long
held to have evolved independently in each group, a reasonable assumption when it was …

Early cardiac development involves the formation of a heart tube, looping of the tube and
formation of chambers. These processes are highly similar among all vertebrates, which …

With approximately 7000 species, snakes and lizards, collectively known as squamates, are
by far the most species‐rich group of reptiles. It was from reptile‐like ancestors that …

The concept of the 'unique myocardial band', which proposes that the ventricular myocardial
cone is arranged like skeletal muscle, provides an attractive framework for understanding …

The inaugural K jell J ohansen L ecture in the Z oophysiology D epartment of A arhus U
niversity (A arhus, D enmark) afforded the opportunity for a focused workshop comprising …

A carrier system for gases and nutrients became mandatory when primitive animals grew
larger and developed different organs. The first circulatory systems are peristaltic tubes …

The multiple convergent evolution of high systemic blood pressure among terrestrial
vertebrates has always been accompanied by lowered pulmonary pressure. In mammals …

The Burmese python, one of the world's largest snakes, has reached celebrity status for its
dramatic physiological responses associated with digestion of enormous meals. The meals …

Non-traditional animal models present an opportunity to discover novel biology that has
evolved to allow such animals to survive in extreme environments. One striking example is …

Many types of snakes are capable of surviving over a year of complete starvation. The
physiological effects of food limitation on snakes can be appreciated both by controlled …