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Full-Text Articles in Life Sciences

Sex Differences In The Recognition Of Infant Facial Expressions Of Emotion: The Primary Caretaker Hypothesis, Raymond B. Hames, Wayne A. Babchuk Jan 1985

Sex Differences In The Recognition Of Infant Facial Expressions Of Emotion: The Primary Caretaker Hypothesis, Raymond B. Hames, Wayne A. Babchuk

Department of Anthropology: Faculty Publications

Although much research has been devoted to studying sex differences In functioning (e.g., Maccoby and Jacklin 1974), most efforts have been directed toward documenting or elucidating the proximate causes of sex differences. Few attempts have been made, however, to explain the ultimate causes of these differences or the selective pressures that have led to the development or psychological differences between males and females [for exception see Symons (1979) and Daly and Wilson (1983)]. Toward this end of blending psychology with evolutionary theory we develop what we call the " primary caretaker hypothesis," which predicts that the sex that through evolutionary …


The Ecology Of Foraging Behavior: Implications For Animal Learning And Memory, Alan Kamil, Herbert L. Roitblat Jan 1985

The Ecology Of Foraging Behavior: Implications For Animal Learning And Memory, Alan Kamil, Herbert L. Roitblat

Avian Cognition Papers

In his recent Annual Review of Psychology article, Snowdon (1983) discussed the synthesis of ethology and comparative psychology. A similar synthesis of behavioral ecology and animal learning is beginning to take place. This article reviews developments in the behavioral ecology and ethology of foraging behavior relevant to psychological research on animal learning. The psychological literature shows that animals possess a wide range of learning abilities, including “simple” classical and operant conditioning; they acquire spatial, nonspatial, and temporal discriminations; they exhibit various forms of rule learning (e.g. matching-to-sample and learning set), and may even in certain senses learn language. Why does …


Control Of Insect Pests In Recent Mammal Collections, S. L. Williams, Hugh H. Genoways, D. A. Schlitter Jan 1985

Control Of Insect Pests In Recent Mammal Collections, S. L. Williams, Hugh H. Genoways, D. A. Schlitter

University of Nebraska State Museum: Mammalogy Papers

A review is made of numerous insecticides to determine their suitability for use in Recent mammal collections. Factors determining their value were based on human safety, ability to protect specimens without adverse effects, and other considerations. The more favorable insecticides to use in mammal collections include Dowfume 75, sulfuryl fluoride. dimethyldiclorovinyl phosphate, paradichlorobenzene, carbon dioxide, and naphthalene. Insecticides that are considered less favor able because of many limitations included aldrin, dieldrin, arsenic, borax, mitin, ethylene oxide, methoxychlor, methyl bromide, and pyrethrum. There are some insecticides that should never be used because of extreme health and/or fire hazards. These include carbon …