Discusses mechanisms and functional intent of visual communication signals in iguanid/agamid lizards. Demonstrated that lizards communicate with each other by using pushups and head nods and that each species does this in its own way, conveying different types of information. (JN)

Describes how a behavioral system in Aplysia (marine snail) can be used to examine mechanisms of several forms of learning at different levels of analysis: behavioral, cell-physiological, ultrastructural, and molecular. Focusing on short-term sensitization, suggests how molecular mechanisms can be extended to explain long-term memory and classical…

Critically reviews the concept of "bonding," exploring its empirical basis and the implications that follow from its application in practice. Among the conclusions reached are that there is a tendency to oversimplify attachment phenomena and that the notion of a sensitive period for attachment has no direct empirical support. (RH)

Basic marine aquaria equipment, techniques for maintenance, specimens and food for the marine organisms are discussed. Several sources of specimens are included. (SA)

Describes a study using two genera of aquatic insects that demonstrates how nonlethal falls in oxygen concentration affect the rate of surfacing of bottom-feeding Coroxidae and how this affects their survival by increasing their proneness to attacks by surface-feeding Notonectidae. (CS)

Describes a five-week course in animal behavior for parents and their middle-school-aged children offered at the Minnesota Zoological Garden. Course activities included discussions, film viewing, demonstrations, zoo observations, and home studies of gerbils or zebra finches. Results of the course are discussed. (CS)

Instructions are given for care of the giant hissing cockroach, "Gromphadorhina portentosa" from Malagasy. Reproductive behavior is described, as well as development of the young roaches. (SA)

Presents natural history information on the zebra finch (Taeniopygia castanotis) for the biology teacher. Includes a section on care of the birds in the classroom and a method for constructing an inexpensive cage. (SA)

A rebuttle to the NSTA publication, "Safety in the Classroom" is given. Opinions of the author are substantiated by research and the references are included. (SA)

The relationship between current information processing and prior associative theories of human and animal learning, memory, and amnesia are discussed. The paper focuses on the two components of the amnesic syndrome, retrograde amnesia and anterograde amnesia. A neural theory of chunking and consolidation is proposed. (Author/RD)

Provides instructions for constructing an Ames window tunnel, a device that illustrates illusion and perception. (CS)

Reports findings on research in Red-winged Blackbird territoriality and describes the educational potential of use of similar studies in the classroom. Territorial mapping and observational techniques are explained. (CS)

Psychophysical procedures provide the simplest method for studying time discrimination of animals. This experiment examines the psychological threshold of rats in estimating the time of occurrence of an event and how they adjust their behavior accordingly. Further research may determine the theoretical implications for both animals and people.…

Describes methods and materials for an innovative laboratory exercise that centers on the concept of mimicry and illustrates the importance of adaptation, natural selection and coevolution. Students are used as predators and raisins as prey. Included are directions for preparation of unpalatable raisins using alum dissolved in reconstituted lemon…

The ventral eye of "Limulus" (horseshoe crab) contains only one type of photoreceptor. Behaviors mediated by the ventral eye provide an unambiguous representation of the function of that single-receptor type. Compares such behaviors with results of acute, single-cell investigations to assay for the contributions of candidate neural codes in the…