Frogs and turtles: different ectotherm overwintering strategies.

@article{Penney1987FrogsAT,
  title={Frogs and turtles: different ectotherm overwintering strategies.},
  author={David G. Penney},
  journal={Comparative biochemistry and physiology. A, Comparative physiology},
  year={1987},
  volume={86 4},
  pages={
          609-15
        }
}
The ability of frogs and turtles to overwinter and to survive hypoxia and anoxia has long been a topic of interest. While data remains scant, the emerging picture shows fundamentally different approaches to overwintering in these two groups of ectotherms. Frogs are far more limited by availability of oxygen than are turtles, even at near-freezing ambient temperatures. The reasons for this probably involve the vastly greater cutaneous permeability of the former. With their extreme tolerance of… CONTINUE READING
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