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Dolphin Deaths: A Case Study in Environmental Toxicology

This case study examines a variety of biological factors that may have been involved in the 2013 dolphin "unusual mortality event" (UME) on the Eas ...


Equilibria in the Environment

This laboratory-based case study is designed to train students in using the scientific method to explore chemical equilibrium in the context of oce ...


Fish as Fertilizer

In this case study, students examine data from a number of published studies of the effects of Pacific salmon on freshwater and riparian ecosystems ...


Fishing for Answers in the Gulf of Mexico's Dead Zone

This “clicker case” addresses the eutrophication of aquatic systems caused by human activities. "Susan" is a biology student working at ...


Is Iron Fertilization Good for the Sea?

This case study describes experiments to seed the ocean with iron to encourage algae growth. It explores how human activities contribute to greenho ...


Lost? Ask a Turtle

This case study examines the events surrounding the hatching and migration of loggerhead sea turtles, specifically what mechanisms they use to head ...


One Whale or Two or … ?

This case study focuses on the intersection of defining a scientific species and defining a legal species. The compelling story of Lolita, an orca ...


Search for the Missing Sea Otters

Using a progressive disclosure format, this case study teaches students how to apply ecological principles to a real-life ecological problem, namel ...


Testing for Grazer Adaptation to Toxic Algae

The intent of this interrupted case study is to present a clear example of both the scientific method and evolutionary adaptation in a model system ...


The Dead Zone

This interrupted case study focuses on the seasonal hypoxic area in the Gulf of Mexico known as the Dead Zone. It follows Sue, a college student, w ...


The Horseshoe Crab

This case study examines the population dynamics of the horseshoe crab, which is sometimes described as a “living fossil.” Students are ...


The Spark of Life

In biology classes, students are typically taught that spontaneous generation does not take place. And yet, at the origin of life, life had to aris ...


Using Oceans to Fight Global Warming?

This problem-based case study explores the scientific issues surrounding the use of large scale iron fertilization as a means of decreasing atmosph ...