Background information on the morphology and physiology of planarians and uses of the organism in schools is provided. Also provided is a transparency master demonstrating a planarian with an everted proboscis, two-headed/two-tailed planarians, and a planarian demonstrating the digestive tract. (JN)

A laboratory project introduced physiological psychology students to research by requiring them to identify an unknown drug given to laboratory animals. Students read material about drugs and animal drug studies, designed behavioral tests, constructed the testing apparatus, conducted the tests, and wrote progress reports. (SR)

Describes methods of collecting crayfish and maintaining them in the classroom. Also discusses reproduction and molting of crayfish. (MA)

Discussed is the use and worth of any studies on animals in research. Topics included are human benefit, anthropomorphism, ecology, and the psychology of the use of animals in research. (DS)

Describes a public health program designed to improve the standard of living of Latin American farmers. Outlines a training course for veterinarian-instructors who are sent to rural areas to teach farmers principles of animal health and disease control. (SK)

This study discusses the behavior of the females of the parasitic wasp Nasonia vitripennis, which adjust the sex ratio of their broods according to whether or not they are the first or second wasp to parasitize a host. The results provide a quantitative test of sex ratio theory. (Author/SA)

Agricultural educators will be expected to come closer to identifying specific knowledge, skills, attitudes, and experiences that students develop as a result of teachers' efforts. Making animal agriculture courses competency-based would be a first step towards this end. (LRA)

Describes experiments which demonstrate how different diets affect the growth rate of earthworms. Procedures for feeding baby worms are outlined, the analysis of results are discussed, and various modifications of the exercise are provided. (CS)

This article focuses on the mechanisms of the human brain which bring about body movements. Included is a discussion of the way in which the brain and spinal cord issue commands and receive signals. (Author/SA)

This series of experiments demonstrated that three-year-old rehabilitated isolate monkeys could exhibit appropriate social behaviors to age-mate monkeys, but only after further treatment. (Author/SS)

Investigates the nature of the rhythmic process mediating multiple retention deficits in rats, i.e., whether it was induced by a training procedure or based on a pre-existing physiological rhythm. Also concerns the mechanism of the rhythm's effect on retention performance, whether it affects performance factors per se or the retrieval of prior…

Three experiments were performed to test the assertion that attractiveness of novel or complex stimuli has confounded experiments on the relative importance of S+ and S- in discrete-trial discrimination. (Editor)

A comparative analysis of two groups of students indicated that unless individuals had special reasons for taking courses in microbiology before entering the College of Veterinary Medicine, these courses would be of no special benefit in the one-year microbiologic sequence. (LBH)

Recounts the formation and function of the Crownpoint Building Veterinary Hospital and describes its facilities and services. (YKH)

Reports on a project by a reading teacher that combines reading and science while debunking the myth of the big, bad wolf. Related activities include making animal tracks, writing, and measurement activities. (DDR)