Hamline University Graduate School
St. Paul, Minnesota

Hamline University Graduate School
St. Paul, Minnesota

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"cold blood"

Anuran
Diversity

Frogs and Toads

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MN Frogs and Toads

Amphibian Habitats

Why We Care

Why We Care

4. Frogs As Bio-indicators

4. Frogs As Bio-indicators

Malformed Amphibians

External Malformations

Internal Malformations

Malformed Frog Pictures

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Causes of Malformations

Trematode (flatworm) cysts have been demonstrated to cause problems in limb bud development in tadpoles

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Possible Chemical Contaminants

Types of Agrochemicals

Types of Agrochemicals

Correlations to Human Health Concerns

"Joan Chadde"

Where have all the frogs gone?
Global Amphibian Decline

Global Population Declines

Global Population Declines

Global Population Declines

Global Population Declines

Global Population Declines

Stakeholders/Interest Groups

What You and Your Students
Can Do to Help!

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Malformity and Calling Surveys

Malformity and Calling Surveys

Malformity and Calling Surveys

Malformity and Calling Surveys

Malformity and Calling Surveys

Malformity and Calling Surveys

Malformity and Calling Surveys

Student Activities

Celebrating
amphibians

Helping Our
Planet Earth
(H.O.P.E.) Frogs

Resources