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Key words: Orexin, grass rat; sleep wake cycle, animal circadian rhythms, species differences
Effects are given as a percentage of half the species difference for autosomal QTL and as a percentage of the whole species difference for X-linked QTL.
What Is the Basis for Species Differences in Responses Mediated by PPAR[Alpha]?
2B), the observed species differences between dogs and humans were attributed to a relatively low urinary excretion in dogs.
The procedure has been attempted thousands of times and has failed because of problems with safety, species differences and organ rejection.
Studies of hybrid zones are of general interest to evolutionary biologists because they can provide insights into the effects of introgression on the maintenance of genetic distinctiveness, into the genetic and ecological nature of species differences, and into the genetic architecture of reproductive barriers (Harrison 1990, 1993).
Current animal models are limited in their relevance to humans in that their physiology is distinctively different from the human, and the mechanisms driving key disease process such as inflammation show marked species differences.
One dramatic example of species differences is that chocolate is enjoyed by humans, but poisonous to dogs.
In the RATCHETCOG project, Dr Caldwell and her team will, for the first time, implement a comprehensive systematic investigation into cumulative cultural evolution, using an experimental method that offers sufficient flexibility to generate valid comparisons across three critical research domains: species differences across the primate family tree; age differences over human development; and learning condition differences in groups of adult human participants.
Proventricular Dilation Disease: A Review of Research, Literature, Species Differences, Diagnostics, Prognosis, and Treatment.
This difference in tolerance of sparse cover likely reflects species differences in nest locations: whereas meadow voles nest on the ground surface, prairie voles occupy either underground burrows or surface nests (Getz, 1985; Klatt and Getz, 1987).