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A full identification number for a sample consists of the following information : leg , site , hole , core number , core type , section number , and interval in centimeters measured from the top of the section ( Fig. F1 ) . Dermatologists usually encounter patients with erythema , blisters , wheals , edema , scars , pigmentary changes , and paresthesias . The book emphasizes concepts and principles , hypothesis testing , and critical thinking , and features studies of a wide variety of wild and domestic vertebrates along with some of the most important invertebrate discoveries . In more ways than we may sometimes care to acknowledge , the human being is just another primate - - it is certainly only very rarely that researchers into cognition , emotion , personality , and behavior in our species and in other primates come together to compare notes and share insights . Observing the behavior and physiology of seabirds may provide an easier , faster , and less expensive means of addressing certain questions regarding , for example , the abundance and distribution of fish populations , oceanographic features and pollution levels .