Presents an activity that allows students to observe crawling and swimming behavior in Lumbriculus variegatus, a freshwater oligochaete worm. Contains 12 references. (WRM)

Provides a protocol for examining the mechanisms of animal thermoregulation in a straightforward but more sophisticated manner than using a thermal gradient. Describes a methodology for conducting operant conditioning to examine thermal set points for ectothermic animals. Contains 20 references. (WRM)

The great diversity of mating systems found within the insects is described. This description provides an insight into the extraordinary explanatory power of Darwinian selection theory. (JN)

Briefly discusses the view that behavior may be thought of as a phenotypic adaptation that can be quantitatively studied, and then considered in more detail ways in which predatory animals, especially mammals, satisfy their need for food. Topics covered include predatory behavior, hunting modes, prey selection, hunting success, and others. (JN)

Ideas related to including ethology in high school biology programs are given. The methods of ethology and tips on how to communicate observations are briefly explained. (SA)

Background information, procedures, and suggestions for bird feeder studies easily conducted in high school or middle school settings are provided. Data collection and analysis are discussed. Examples of charts produced by these activities are given. (CW)

Discusses findings that suggest that mating preferences of female mottled sculpins (small North American fish) are influenced by at least four major factors, and that the relative importance of these factors changes through time. The type of choice that a female makes thus depends on time of breeding. (JN)

Described are the basic materials and procedures used to study defensive burying behavior and suggested laboratory projects. Discusses live targets, non-living targets, social variables, and previous experiences of the subjects. (CW)

Describes ways platyfish can be utilized in biology activities and experiments. Includes an account of the animals' care, unique anatomical characteristics, reproductive behavior, and genetics. (DS)

Provides examples of several classroom activities utilizing the American horseshoe crab (Limulus Polyphemus), including raising fertilized eggs, fertilizing eggs in vitro, and testing water samples. Includes background information on the natural history, life cycle, and breeding habits of this animal. (DS)

Biology teachers in introductory and upper level high school courses generally present principles of taxonomy as part of the curriculum. Students learn about classification systems that categorizes species into recognized taxonomic groups based on their degrees of structural divergence or derived ancestral traits. References made, hereafter, to…

Describes a series of four experiments designed for small group involvement (each requiring 6 days) emphasizing students' scientific methodology. Topics include: feeding behavior; light/temperature effects on reproduction; effect of density on feeding; and altered male/female ratios on male behavior. Each experiment includes introduction, material…

Discusses the changing function of the modern zoo from its merely recreational role to its newly emerging role as preserver of species, educator, and center for research. Describes the San Diego Zoo as the model for the modern zoo and provides tips for planning field trips to a zoo. (JM)

Use of motion pictures and videotape recordings to analyze animal behavior is described. Indicates that accuracy/amount of data available is greatly increased and that simultaneous behaviors of different animals can be studied or individual behavior patterns increased/decreased, providing observers with temporal perceptions similar to the animals…

A laboratory exercise using a gerbil is described for use in the high school biology class and in accordance with the National Science Teachers Association guidelines. The authors cite references that deal with current awareness of the moral status concerning animals. The exercise includes measurement and calculations. (SA)