Locomotory energetics in a marsupial (Antechinomys spenceri) and a rodent (Notomys alexis).
Steady state oxygen consumption was compared in a rodent Notomys alexis and a marsupial Antechinomys spenceri. The marsupial was found to diverge from predicted eutherian energic patterns. N. alexis appears to use energy storage as a significant part of the step cycle before becoming bipedal. Aerobic scope and heat storage during running are similar in both species.
D000818:Animals; D008394:Marsupialia / Q000502:physiology*; D009043:Motor Activity; D010101:Oxygen Consumption; D012377:Rodentia / Q000502:physiology*; D012420:Running