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Full-Text Articles in Biology
The Roles Of Phenotypic Plasticity And Genotypic Specialization In High Altitude Adaptation, Danielle M. Tufts
The Roles Of Phenotypic Plasticity And Genotypic Specialization In High Altitude Adaptation, Danielle M. Tufts
School of Biological Sciences: Dissertations, Theses, and Student Research
In vertebrates living at high altitude, arterial hypoxemia may be ameliorated by reversible changes in the oxygen-carrying capacity of the blood (regulated by erythropoiesis) and/or changes in blood–oxygen affinity (regulated by allosteric effectors of hemoglobin function). These hematological traits often differ between taxa that are native to different elevational zones, but it is often unknown whether the observed physiological differences reflect fixed, genetically based differences or environmentally induced acclimatization responses (phenotypic plasticity). Here, we report measurements of hematological traits related to blood–O2 transport in populations of deer mice (Peromyscus maniculatus) that are native to high- and low-altitude …
Science Fiction And The Myth Of Trajectory Evolution, Jocelyn D. Pickreign
Science Fiction And The Myth Of Trajectory Evolution, Jocelyn D. Pickreign
The Macalester Review
Stephen Jay Gould first proposed the idea of “iconographies of progress.” Today, one of the most prominent forms of progress iconography is the science fiction story. Science fiction as a genre frequently portrays evolution as a linear trajectory of increasing complexity, and in doing so, furthers a worldview that is not unlike the pre-Darwin understanding of human beings as both the center and the pinnacle of the natural world.