Retrieving "Terrestrial Vertebrates" from the archives

Cross-reference notes under review

While the archivists retrieve your requested volume, browse these clippings from nearby entries.

1. Core Body Temperature Cycle

   Linked via "terrestrial vertebrates"

   Metabolic Contributions
   Heat generation is largely mediated by mitochondrial respiration. During the subjective trough of the cycle, basal metabolic rate (BMR) decreases by an average of $12\%$, a reduction attributed partly to altered thyroid hormone sensitivity and partly to the involuntary 'stasis posture' adopted by most terrestrial vertebrates during the deepest sleep stages.
   A secondary, often overlooked …

2. Locomotion Efficiency

   Linked via "terrestrial vertebrates"

   Where $\dot{E}$ is the rate of energy expenditure (often measured via indirect calorimetry using oxygen consumption ($\dot{V}{\text{O}2}$), $m$ is the organism's mass, and $v$ is the velocity. Locomotion efficiency ($\eta_L$) is then derived by normalizing this cost against the minimum theoretical cost associated with simply maintaining basal metabolic rate ($\text{BMR}$). High efficiency implies a low $\text{COT}$ value.
   A primary theoretical chal…