
How do glassfrogs become transparent?
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+ Links to lessons about blood and circulation
+ Lesson idea video on circulation game
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+ Links to lessons about blood and circulation
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+ Lesson Idea Video on Antibiotic resistance natural selection lab
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+ Article translated into Spanish
Researchers wanted to compare the effects of endocrine-disrupting chemicals on different animals and their offspring.
Researchers race to discover how many species of salamanders depend on Texas groundwater before groundwater depletion and habitat loss drive them extinct.
Scientists wanted to know if bullfrogs play a role in the spread of Batrachochytrium dendrobatidis, a deadly fungus that attacks amphibian skin.