The postglacial adaptive radiation of the threespine stickleback fish forms the basis for much of the research conducted in our laboratory. Laboratory members address questions concerning the evolution of reproductive and antipredator behavior, color, morphology, and life history in both contemporary and older contexts. Others, working with John Baker, are engaged in conservation research in Massachusetts streams, including study of the globally endangered freshwater mussel, Margaritifera maragaritifera.

Investigating Human-Induced Evolution: Is a shift in ecotype associated with greater variability?

After spending the past three weeks in various solutions (some rather toxic), sixty of the fish that we collected in Alaska this summer have undergone somewhat of a radical transformation                 These fish, … Continue reading

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My babies’ hearts are beating!

  Although I partook in the fertilization of hundreds (thousands?) of eggs while in Alaska, I did not get the opportunity to follow their growth closely. As part of a new project regarding potential plasticity of pelvic spine growth, I … Continue reading

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The Trouble with Mussels Is…

The freshwater pearl mussel has a unique life cycle that includes female mussels ingesting sperm from the surrounding water to fertilize their eggs. Once the eggs are fertilized the female is considered gravid, or pregnant. The fertilized eggs (glochidia) are … Continue reading

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