The Evolution of Endothermy in the Phylogeny of Mammals

@article{McNab1978TheEO,
  title={The Evolution of Endothermy in the Phylogeny of Mammals},
  author={Brian K. McNab},
  journal={The American Naturalist},
  year={1978},
  volume={112},
  pages={1 - 21}
}
  • B. McNab
  • Published 1 January 1978
  • Biology
  • The American Naturalist
The evolution of the endothermy of mammals can be traced to the ectothermy of early reptiles. It is suggested that small endotherms cannot be directly derived from small ectotherms because of the requirement for the simultaneous change in thermal conductance and the rate of metabolism. Instead, small ectotherms probably gave rise to large ectotherms (thereby increasing thermal inertia), a fur coat may have been added to increase thermal stability, and a decrease in size with only a modest… Expand
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