EVEN THOUGH I RETIRED COMPLETELY in 1998 and vowed never to attend another meeting, I had to renege because it is such a great honor to be invited to give this lecture honoring my mentor, Julius Comroe. I thank the selection committee for considering me. Of the nine scientists chosen since this lecture was established, I may be the first unreconstructed, whole animal physiologist. Before I left...

The study of mechanism: How do modern-day animals carry out their functions? 5 The study of origin: Why do modern-day animals possess the mechanisms they do? 7 Natural selection is a key process of evolutionary origin 8 Mechanism and adaptive significance are distinct concepts that do not imply each other 8 The structural property of an animal that persists through time is its organization 11 M...

This is a comprehensive physiology textbook covering a wide range of relevant topics in biology, general physiology, and biochemistry as they relate to organ system operations. Regulatory and comparative aspects of body functions are emphasized. Similarities and differences of structure and function in various animal species are described in an effort to develop the basic concepts of organ func...

function. This application of fluorescence is based on the fact that fluorescence spectra, absorption spectra, and polarization of fluorescence are rather sensitive indicators of the local environment of the chromophore. Therefore, fluorescence measurements can provide information about the environment of natural chromophores (e.g., tyrosine) or of chromophores added to the preparation (fluores...

Migration is a widespread phenomenon among many taxa. This complex behaviour enables animals to exploit many temporally productive and spatially discrete habitats to accrue various fitness benefits (e.g. growth, reproduction, predator avoidance). Human activities and global environmental change represent potential threats to migrating animals (from individuals to species), and research is under...