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What did we do?First we studied frog biology. Then we looked at what scientists say causes frog malformations. We found three main causes: too much UV light from the sun, chemical pollutants, and parasites. Each cause shows up as a different kind of malformation. We got a bunch of neighbor kids together and started collecting as many frogs as we could. We sorted the frogs into categories: healthy, malformed on one side of their body (asymmetrical), and malformed on both sides of their body (symmetrical). more... |
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