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Yahnke, Christopher J. – American Biology Teacher, 2006
All animals must make choices regarding what foods to eat, where to eat, and how much time to spend feeding. Optimal foraging theory explains these behaviors in terms of costs and benefits. This laboratory exercise focuses on optimal foraging theory by investigating the winter feeding behavior of birds on the goldenrod gall fly by comparing…
Descriptors: Science Activities, Laboratory Experiments, Eating Habits, Ethology
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Miller, Dorothy – Science Activities, 1993
Presents an activity in which students in grades 5-8 learn about snail reproduction by observing and charting the activities of land snails, freshwater snails, and slugs. Instructions to implement and extend the activity are provided. (MDH)
Descriptors: Animal Behavior, Aquariums, Biology, Intermediate Grades