STS Units
for use in the classroom

This unit investigates the burgeoning research on amphibian abnormalities and the possible linksto human-caused environmental problems:
* the evidence is mounting that the deformities are caused by either
-an environmental agent in the water where the creatures breed
-infestation of other organisms not previously part of the amphibian habitat
* The research was shared and discussed in cyberspace...the first conference of this size to be completely held on the WWW.

There has been an unusually high frequency of amphibian limb abnormalities in the past few years