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Andean coot

High altitude adaptation

I will add a new section and the heading will be physiology. I would add this under the section I created.

The Andean coot is found in both North and South America.[1] As they are found at a wide range of different altitudes, the populations that live at high altitudes have adapted physiologically to a low-oxygen environment. For example, Andean coots living at altitude have more capillaries per square millimeter of muscle compared to Andean coots living at sea level.[1]  

citation

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  1. ^ a b Le�n-Velarde, F.; Sanchez, J.; Bigard, A. X.; Brunet, A.; Lesty, C.; Monge-C, C. (1993-02). "High altitude tissue adaptation in Andean coots: capillarity, fibre area, fibre type and enzymatic activities of skeletal muscle". Journal of Comparative Physiology B. 163 (1): 52–58. doi:10.1007/BF00309665. ISSN 0174-1578. {{cite journal}}: Check date values in: |date= (help); replacement character in |last= at position 3 (help)

2. Carey, C., Leon-Velarde, F., Dunin-Borkowski, O. et al. Variation in eggshell characteristics and gas exchange of montane and lowland coot eggs. J Comp Physiol B 159, 389–400 (1989). https://doi.org/10.1007/BF00692411.